Precision Power: 50 Best Bosch Hammer Drill Bits
The Best Bosch Hammer Drill Bits
When it comes to drilling through tough materials like concrete and masonry, the right drill bit makes all the difference. Our roundup of the best Bosch hammer drill bits examines their durability, performance, and value, helping you choose the perfect tool for your next big project.
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Reviews
Bosch SDS-Max Rotary Hammer Bit
These robust Carsonide rotary hammer bits from Bosch deliver exceptional performance in concrete drilling, maintaining their sharpness longer than competing bits while meeting ANSI B212.14 specifications. With a solid carbide head and S-cutter design, they combine speed with durability for efficient hole cutting. The bits feature a 18mm SDS-MAX shank and measure 5/8 inch in diameter by 13 inches long, making them a precise choice for professional concrete work.
Bosch 3/4" BlueGranite Turbo Carbide Drill Bit
These high-performance Bosch drill bits significantly outshine standard masonry bits, thanks to their turbo carbide construction and optimized design features. The aggressive PowerGrip shank provides exceptional bit retention, while the four-grind head and precision centering tip work together to drill faster and more accurately through concrete, stone, and masonry materials. With their impressive durability and enhanced cutting angles, these premium drill bits help professionals achieve better results in less time.
Bosch HC5031 Rotary Hammer Drill Bit
When it comes to drilling through concrete, this Bosch SDS-Max bit stands out for its durability and efficiency. The solid carbide construction and S-cutter design work together to make quick work of tough materials while maintaining sharpness longer than other bits on the market. The 3/4-inch diameter bit can reach 21 inches deep, making it perfect for both residential and professional use where precision and power are essential.
Bosch BlueGranite Turbo Hammer Drill Bits
Drill through concrete and brick like a pro with these tough Bosch bits that last five times longer than regular masonry drill bits. The extra-sharp cutting edges and dust-clearing design let you work through tough materials faster than ever, while the durable hex-shank construction keeps your drill steady during powerful impacts.
Bosch HCBG0610T 1/4" x 6" BlueGranite Turbo Carbide Drill Bit
These Bosch hammer drill bits are built to last four times longer than standard bits, thanks to their robust 1/4-inch steel shank design that locks securely into place. The diamond-tipped carbide tip ensures precise starts in tough materials like tile and stone, while the milled u-flutes and deep-cut spiral design keep your drill bit cool and clear of debris during heavy use. The straight, 0.375-inch shank fits standard drill chucks with ease, making these durable bits perfect for professional-grade drilling tasks.
Bosch HS2173 15-1/2 In. Tamper Shank 1-1/8 In. Hex Hammer Drill Bit
The Bosch HS2173 combines durability and functionality for professionals who work with concrete and masonry. At 15.5 inches long, this tamper shank provides the reach needed for consistent performance without adding unnecessary strain. Whether you're tamping dirt and asphalt or using it with a 6x6-inch tamper plate, this tool handles both tasks with ease, backed by Bosch's commitment to quality through their proprietary heat-treat process.
Bosch TC2005 5/32" Concrete Drill Bit
Bosch's TC2005 drill bits combine durability with practical design elements that prevent bit slippage during use. The high-quality carbide-tipped bits deliver consistent performance when working with brick, concrete, and block materials, making them a valuable addition to any professional's tool kit. The well-designed hex drive system ensures easy installation in standard chucks while the 5/32-inch diameter and 4.5-inch flute length provide the right balance of strength and flexibility for tough masonry applications.
Bosch HC2001B5 5-Pack Rotary Hammer Bits
When it comes to drilling in concrete, these German-engineered bits hit the nail (or rather, the rebar) on the head with their precision-tipped design that cuts through hardcore materials like a champ. They've earned serious street cred from users who swear by their durability, though some have noted they can wear down pretty quickly after about 10 holes in denser concrete. Thanks to their reliable performance and tough carbide tips, these bits are worth the occasional tooth grinding that comes with seriously heavy-duty drilling.
Bosch HCBG06B25T 1/4" BlueGranite Turbo Carbide Drill Bits
These durable hammer drill bits are engineered for maximum performance in brick, block, and masonry work. The proprietary BlueGranite technology combines a diamond-tipped carbide nose with a four-grind head design that delivers exceptional chip clearance and extended bit life. The precision-engineered hex shank and impact-rated construction allow for reliable use in both hammer drills and impact drivers.
Bosch HC2001B10 10-Pack Rotary Hammer Bits
Made in Germany, these titanium-finished bits combine a carbide-tipped head with an optimized flute design that keeps them running cool while reducing stress. The centric tip makes starting in concrete easy, and a wear mark alerts you when it's time to replace the bit according to ANSI specifications. The 10-pack includes durable 5/32-inch diameter bits that are 15% faster in concrete than their S4L counterparts.
Bosch 1618596262 SDS-Plus 20mm Masonry Drill Bit
German-engineered for lasting performance, these drill bits combine premium carbide construction with specialized groove patterns that prevent bit seizure in tough materials like concrete. The precise 20mm x 250mm bit features an optimized center point and advanced brazing technique that reduces vibrations during drilling, making it ideal for professional masonry work. The bit's durable design is backed by rigorous quality testing, ensuring consistent performance and reliable hole diameters for proper anchor installation.
Bosch HC89 Core Bit
These specialized drill bits combine a powerful carbide tip with an innovative wave design that dramatically improves energy transfer, allowing smaller drills to create significantly larger holes than standard bits. The all-in-one core construction ensures direct power transmission to the bit's tip, while the unique Shank design delivers up to 40% enhanced drilling performance. Whether you're a professional or DIY enthusiast, these high-quality bits represent the pinnacle of core drilling technology from Bosch.
Bosch SDS-plus Rotary Hammer Bit
Drilled through 40+ layers of asphalt and concrete in one go, this tough Bosch bit keeps on chugging where other drill bits break down. The precision-centric design makes quick work of tough materials, while the wear indicator ensures you know when it's time for a swap before it's too late.
Bosch HC2084B25 Rotary Hammer Bit
This comprehensive 25-pack of Bosch Bulldog SDS-Plus rotary hammer bits combines premium carbide-tipped construction with an optimized brazing and hardening process for exceptional durability and longevity. The specially designed 1/2-inch diameter bit features a center-starting tip and advanced flute geometry that maintains cool operation during heavy-duty applications. The bit's durable carbide tip and improved design elements enable up to 15% faster drilling while meeting ANSI safety standards with built-in wear indicators.
Bosch HC88 Rotary Hammer Core Bit
This Bosch core bit packs serious punch, drilling up to 40% faster thanks to its innovative wave design. The carbide-tipped teeth breeze through material, while the asymmetrical cutting edges stay sharp longer. At just 0.16 lbs, this nimble bit gives your hammer drill superhuman capabilities, tackling tough jobs with ease.
Bosch HC8036 3-1/4" x 22" Spline Rotary Hammer Core Bit
When it comes to drilling through concrete and masonry, Bosch's HC8036 bit delivers impressive performance with its 2-5/8-inch core capacity. The one-piece design with Wave Technology reduces vibration and noise while efficiently transmitting power from your drill. The spline-shank construction helps maintain consistent bit alignment and extends tool life during demanding jobs.
Bosch 4" x 22" Spline Rotary Hammer Core Bit HC8055
The Bosch 4-inch spline rotary hammer core bit combines advanced engineering with practical drilling capabilities. With its wave-shaped design, this bit transfers energy more efficiently, reducing vibration and noise while increasing drilling speed by up to 40 percent compared to previous models. The carbide-tipped, one-piece design ensures lasting performance and precise core extraction, making it a reliable choice for both professional and serious DIY projects.
Bosch HC8506 SDS-|max Rotary Hammer Core Bit
This Bosch rotary hammer core bit combines a wave design for 40% faster drilling with carbide-tipped teeth for durable cutting. The integrated shank efficiently transmits power along the entire 22-inch length, while the asymmetrical carbide teeth and wave design work together to maximize drilling speed and bit life. The bit can extract core samples up to 2-5/8 inches deep, making it a versatile choice for various drilling applications.
1/2" Bosch Spline Rotary Hammer Bit
When it comes to drilling through tough concrete and masonry, the Bosch 1/2-inch spline speedX rotary hammer bit really shines. Thanks to its tungsten-carbide tip, this bit handles extreme loads with ease while its four-cutter design keeps drilling smooth and efficient. The large flute volume helps clear out dust quickly, preventing clogs and keeping the bit running smoothly during extended use.
Bosch Impact Control Multi-bit Set
This comprehensive 35-piece bit set from Bosch combines durable construction with practical features like their trademark Pick and Click system for easy bit changes. The included drill bits feature diamond-cut edges that handle everything from wood to concrete with ease, while the specially designed screwdriver bits include a torsion zone to prevent breakage during heavy use. Users particularly appreciate the set's adaptability, noting its compatibility with all common drill drivers and its space-saving design that includes room for additional bits in the included carrying case.
Bosch HCSTP2083 1/2" x 1-11/16" SDS-Plus Stop Bit
A Bosch stop bit makes setting concrete anchors precise and efficient, thanks to its built-in depth collar that prevents over-drilling. The durable carbide tip and spiral flute design reduce wear and improve dust clearance, while the 1/2-inch bit diameter handles most common anchor sizes. This essential tool eliminates the guesswork from masonry work, giving professional results every time.
Bosch HC4C2041 Rotary Hammer Bit
The Bosch Bulldog rotary hammer bit cuts through concrete with remarkable efficiency, thanks to its four-cutter design that prevents jams when hitting rebar. Users praise its ability to drill quickly while maintaining precise centering for accurate wall anchor installations. While some report exceptional performance, others have noted durability issues, though most find it worth the investment for multiple concrete drilling projects.
Bosch HCFC2041CC Rotary Hammer Bits
When it comes to drilling concrete and masonry, these German-engineered bits from Bosch get the job done with precision and durability. Thanks to their 1/4-inch carbide tip and four cutting heads, these bits can take on even the toughest materials while their SDS-Plus shank ensures rock-solid connection in your hammer drill. With a handy one-handed chuck mechanism and a generous 6 1/2-inch overall length, these100-pack bits are built for serious drilling projects that demand both power and control.
Bosch HC4510 Spline Rotary Hammer Bit
The Bosch Speed-X rotary hammer bit provides reliable performance for your drilling tasks, with its carbide-tipped design ensuring durability. At 13 inches long and 1/2 inch in diameter, this bit delivers the reach and power needed for various applications. Its carbide construction ensures longevity and consistent performance on tough materials.
Bosch HC4C2124 3/4" x 12" SDS-Plus Rotary Hammer Bit
When it comes to drilling through concrete and masonry, especially when rebar might be lurking, this Bosch Bulldog Tough drill bit really shines. Its four-cutter design keeps it from getting stuck on rebar, while the aggressive flute shape helps clear dust to maintain steady drilling speed. Users love how reliably it drills through tough materials like brick and concrete, making it a solid choice for both DIY enthusiasts and professional contractors who need dependable performance.
Bosch Mini X-Line 2607017161 Drill Bits Set
This 14-piece drill bit set offers versatile drilling solutions for various materials including tiles, wood, stone, concrete, and metal, with a 25mm length and 8mm diameter featuring a hammer drill-resistant tip for lasting performance. The set includes five universal drill bits in 3/4/5/6/8mm sizes, making it unnecessary to change drills for different materials. Completing the package are eight precision screwdriver bits that include common sizes and styles like Philips, Pozidriv, Torx, and slotted, held securely in a magnetic universal holder. The compact storage in a plastic case keeps the bits organized and protected for convenient access.
Bosch HC8506 SDS Max Core Bit
The Bosch HC8506 series combines a wave design with an integral shank for enhanced power transfer, allowing smaller drills to create larger holes efficiently. This advancement delivers up to 40% faster drilling compared to previous models, making it a practical choice for professional use where drilling capacity and speed are crucial.
Bosch SDS-Max Carbide Rotary Hammer Core Bit
These durable Bosch rotary hammer core bits combine a carbide-tipped design with an SDS-MAX shank for exceptional power transfer and extended drilling depth. The wave-shaped flute geometry enhances energy dispersion, delivering up to 40% faster drilling speeds compared to the previous model while maintaining consistent performance in concrete applications.
Bosch HC5021 5/8" SDS-Max Drill Bit
The Bosch HC5021 drill bit packs serious punch for concrete work, thanks to its solid carbide construction and efficient S-cutter design. It outperforms competitors by maintaining its sharpness longer and drilling more precise holes – all while meeting strict ANSI standards. This reliable bit works with both Bosch SDS-MAX hammers and compatible tools from other manufacturers, making it a versatile addition to any concrete drilling setup.
Bosch HC4501 Rotary Hammer Bit
This durable Bosch rotary hammer bit combines a tungsten-carbide tip with a four-cutter design for efficient drilling in concrete and reinforced concrete. The large flute volume helps clear dust and debris, while the active-centering tip ensures precise guidance during tough demolition work. The heat-treated steel construction and specialized carbide-tipped design deliver consistent performance through extended use on challenging masonry materials.
Bosch HC2089 Rotary Hammer Bit
This Bosch SDS-plus rotary hammer bit combines premium craftsmanship with practical features, as evidenced by its 15% faster performance compared to standard alternatives. The durable carbide tip ensures efficient drilling, while the optimized brazing and hardening process guarantees longevity. Users consistently praise its reliability, with some reporting successful completion of challenging projects like cable routing and concrete splitting. The bit's innovative design includes an integral wear indicator and improved flute structure that keeps it cool during demanding applications.
Bosch BM5207 5-Piece Spiral Masonry Drill Bit Set
This five-pack of Bosch masonry drill bits combines a spiral flute design for efficient material removal with a durable carbide head that maintains cutting performance in hard brick and concrete. The precision-engineered bits minimize wandering during drilling, while their high-speed compatibility with cordless tools enhances productivity. Users appreciate their reliability for demanding masonry tasks, though some note limited depth capability for certain applications.
Bosch BM2017 5/8" Masonry Drill Bit
This drill bit makes quick work of masonry thanks to its double-fluted design that cuts through material efficiently. At 5/8 inch in diameter with a 3/8-inch shank, it delivers the power needed for serious drilling projects. While some users have reported issues with bit retention in challenging materials, its carbide tip and precision manufacturing make it a solid choice for most masonry tasks.
Bosch 5PC SDS-Plus Bulldog Rotary Hammer Bits
These precision-engineered drill bits combine superior carbide tipping with an optimized brazing process for exceptional durability in the toughest concrete drilling applications. The ergonomic 3/16" diameter design features a centric tip for effortless starts and an integral wear indicator to alert you when it's time to replace the tip before it exceeds ANSI specifications. The proprietary Bosch hardening process ensures these bits maintain their cutting edge up to 15% longer than comparable alternatives, giving you the confidence to tackle demanding projects without frequent replacements.
Bosch HC2040B25 25-Piece Rotary Hammer Bits
The Bosch HC2040B25 25-piece set delivers impressive durability with its specially hardened carbide tip that exceeds ANSI specifications – and you'll know when it's time to replace it thanks to the built-in wear mark indicator. Each bit's enhanced flute design keeps temperatures down during heavy use, while the centric tip makes quick work of concrete holes. These robust bits are optimized for serious drilling tasks, giving you up to 15% faster performance compared to standard options.
Bosch Impact Tough 6-in Masonry Drill Bit
These Bosch drill bits take the legwork out of tough drilling jobs with their impressive durability and efficient design. The carbide-tipped bits slice through brick and concrete like butter, thanks to their diamond-ground tips and deep-cut spirals. Users love how these bits can handle serious jobs while staying sharp for multiple drilling sessions – perfect for anyone who needs reliable masonry tools for both new construction and maintenance projects.
Bosch HC2163 1" x 10" SDS-plus Rotary Hammer Bit
This reliable Bosch bit tackles tough concrete and masonry jobs with ease, thanks to its rugged carbide tip and optimized engineering. The bit's clever design keeps it running cool during demanding tasks, while its precision-centric tip makes quick work of even the toughest holes.
Bosch BM2022 Spiral Masonry Drill Bit
This Bosch masonry drill bit combines a single-flute design with a carbide-tipped head to deliver fast, efficient drilling in brick and concrete. Its 135-degree cutting angle and spiral flute shape facilitate smooth material removal while the high-speed compatibility makes it versatile for both corded and cordless drills. The bit's precision engineering helps prevent wandering during use, ensuring consistent, clean holes with minimal wear on the tool.
Bosch HC2083 Rotary Hammer Bit
This Bosch Bulldog bit brings serious punch to your hammer drill, with a tough carbide tip that chews through concrete like it's going out of style. The clever centric tip design makes quick work of tough anchors, while an etched size mark keeps you legally compliant even when you're pushing it hard. At just 0.19 lbs, it's surprisingly nimble for its 8-inch length, making it a no-brainer for contractors who demand the best from their tools.
Bosch BM2012 Spiral Masonry Drill Bit
If you're working with brick or masonry, this Bosch drill bit cuts through material quickly with its double-fluted design. The carbide-tipped bit lasts longer than standard bits, while the precision-engineered tip helps keep the bit straight during drilling. Its performance shines in both corded and cordless rotary drills, making it a practical choice for any masonry project.
Bosch HC4C2044 Rotary Hammer Bit
The Bosch Bulldog bit combines a four-cutter design with aggressive dust-pulling action to deliver reliable performance in concrete and brick, while its superior longevity reduces replacement needs. Users particularly appreciate its ability to drill around rebar without getting stuck, though reviews note mixed results in extremely hard materials. With its proven track record in professional settings, this bit proves itself an essential tool for serious drilling tasks.
Bosch HCBG02B25T Hammer Drill Bits
These durable Bosch hammer drill bits combine aggressive PowerGrip shanks with diamond-tipped carbide for consistent performance on tough materials like concrete and tile. The 4x longer-lasting design and advanced milled u-flute construction keep dust out while maintaining precise starts in challenging applications.
Bosch BM2018 Masonry Drill Bit
This reliable Bosch drill bit is engineered for efficient masonry work, combining a single-flute design with a sharp carbide tip for speedy drilling in brick and block. The bit's 135-degree cutting angle and straight shank ensure secure installation in standard drills, while its precision manufacturing prevents wandering during use. The high-speed capability makes it versatile for both corded and cordless drills, delivering lasting performance in masonry applications.
Bosch BL2165 Fractional Drill Bit
The Bosch BL2165 drill bits are precision-engineered for professionals who handle a wide range of materials. With their speed helix design, these bits drill three times faster than standard bits while lasting 50% longer than high-speed steel alternatives. Their black oxide coating provides enhanced durability and performance across various applications.
Bosch SDS-Plus Rotary Hammer Bits
These Bosch hammer drill bits pack serious durability thanks to their specialized manufacturing process that makes them last 15% longer than standard options. The carbide-tipped design chews through concrete like a pro, while an improved flute shape keeps things cool during heavy use. The centric tip makes quick work of tough materials, and a handy wear indicator lets you know when it's time for a replacement.
Bosch HCFC2011B10 3/16-Inch SDS-Plus Rotary Hammer Bits
These 10 Bosch hammer drill bits save you money by lasting four times longer in concrete than competing bits - and four times longer with rebar. Thanks to their special diffusion bonding technology, these 3/16-inch bits stay sharp four times longer in all concrete types. The precision-tipped design prevents jamming when hitting rebar and ensures perfectly-sized holes every time.
Bosch HC5011 SDS-Max Rotary Hammer Drill Bit
With its solid carbide head and robust S-cutter design, this Bosch rotary hammer drill bit delivers exceptional power and longevity for concrete drilling. The 1/2-inch bit meets ANSI specifications while its TE-Y and TE-FY shank design ensures compatibility with SDS-MAX hammers from multiple manufacturers. Thanks to the advanced carbide construction, you'll stay within drilling specifications and complete more projects per bit than with competing options.
Bosch BM2025 Masonry Drill Bit
The Bosch Fast Spiral Rotary Masonry Drill Bit packs serious power into its 4-inch length, thanks to its double-fluted design that cuts through brick and block like a hot knife through butter. The carbide-tipped bit not only drills quickly but stays sharp for longer thanks to its precision manufacturing. Whether you're working with corded or cordless drills, this bit delivers impressive performance without wandering or walking during those crucial cutting moments.
Bosch HC4072 1-1/4" x 29" Spline Speed-X Rotary Hammer Bit
This robust drill bit combines a durable tungsten-carbide tip with a four-cutter design for superior performance in hard materials like concrete and reinforced concrete. The large flute volume helps clear dust quickly, while the active-centering tip keeps the bit stable and guided during tough drilling jobs. The spline-shank design ensures secure bit retention in the drill.
Bosch HC2010B25 25pc SDS-plus Rotary Hammer Bits
These Bosch 25-piece rotary hammer bits combine durable carbide-tipped heads with a patent-pending four-flute design that enhances both drilling speed and dust removal. The centric tip ensures precise hole entry in concrete, while a wear indicator alerts users when it's time to replace the bit according to ANSI specifications. The bits run cooler than standard designs due to their optimized flute shape, making them ideal for heavy-duty applications where bit longevity and performance are critical.
Buyer's Guide
Bosch hammer drill bits are designed for both drilling holes and driving screws in masonry and concrete. Understanding their specifications and applications helps in selecting the right bit for specific projects.
Material Compatibility
Bosch offers specialized bits for different materials. Masonry bits (also called masonry bits) have tungsten carbide tips for drilling concrete and brick, while twist bits are suitable for wood and metal. Understanding material compatibility ensures the bit performs efficiently and prolongs its lifespan.
Depth and Diameter Guidance
Drill bits come in various lengths and diameters, indicated by number codes on the packaging. The length determines how deep the bit can drill, crucial for not exceeding structural limits. The diameter affects the hole size and requires matching driver bits for subsequent work.
Thread Length and Type
For concrete work, bit thickness is measured by thread length rather than diameter. Standard threads are 11.5mm, while ultra-thick bits measure 15mm. Thread type affects bit grip and durability, with standard threads providing good balance between strength and ease of use.
Bit Selection Tips
When selecting bits, consider the drill's power and the drilling depth required. For common tasks, a set with various diameters and lengths provides flexibility. Regular maintenance through proper storage and regular inspection extends the life of your drill bits.
FAQ
What is a Bosch hammer drill bit and how does it differ from a regular drill bit?
A Bosch hammer drill bit is specifically designed for masonry and concrete drilling. Unlike standard drill bits, which are engineered for wood and metal, hammer drill bits feature a distinctive dual-action mechanism: regular rotation combined with impact actions that break up the material being drilled. This makes them incredibly effective for creating holes in hard surfaces like concrete blocks and brick.
The bit's structure includes alternating flute angles and special chisel-like points that vibrate and pulverize the material, significantly reducing the effort needed compared to manual chiseling. These specialized bits are essential tools for construction and DIY projects requiring precise holes in tough materials.
What materials can Bosch hammer drill bits effectively drill into?
Bosch hammer drill bits excel at drilling through concrete, brick, stone, and other masonry materials. Their dual-rotation and impact design makes them particularly suitable for creating holes in surfaces that regular drill bits cannot penetrate.
While they are designed for hard materials, these bits can also be used on softer materials like wood and metal, though their specialized features may not provide the same efficiency and durability. Always check manufacturer specifications for recommended material depths and diameters.
What are the primary benefits of using Bosch hammer drill bits?
Bosch hammer drill bits offer increased drilling speed and reduced effort when working with hard materials. Their impact mechanism breaks up the material being drilled, allowing for faster and more efficient hole creation compared to traditional drilling methods.
These bits also provide superior durability and longer lifespan, designed to withstand the wear and tear of drilling through concrete and other masonry materials. The specialized construction reduces the risk of bit breakage and ensures consistent hole quality.
Are Bosch hammer drill bits compatible with all drill models?
Bosch hammer drill bits are compatible with most drill models that accept impact drill bits, including both cordless and corded drills. For specific compatibility, refer to your drill's manual or the drill manufacturer's website.
It's important to use the correct size and type of bit for your drill - using an incorrect size can damage both the drill and the bit. Always check that the bit matches your drill's specifications in terms of shank diameter and hex size.
How should I maintain my Bosch hammer drill bits to ensure longevity?
To extend the life of your hammer drill bits, regularly clean them of dust and debris after use and store them in a dry environment. If the bit becomes dull or damaged, replace it immediately to maintain drilling efficiency and safety.
For particularly tough materials, consider applying a drilling lubricant to reduce friction and heat buildup during operation. Periodically check the bit for wear on the chisel tip and uneven flute wear, which may indicate the need for replacement.
What safety precautions should I take when using Bosch hammer drill bits?
Always wear appropriate safety gear when using hammer drill bits, including gloves, safety glasses, and a dust mask. Ensure your drill is properly maintained and that the bit is securely installed before beginning any drilling.
Check the work surface to ensure it is stable and can support the weight of the drill. Maintain a firm grip on the drill and keep your fingers away from the bit's tip. For continuous drilling in one spot, use a drilling brace to stabilize the bit and prevent it from wandering.
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