Combination Square

of January 2022

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IRWIN Tools Combination Square, Metal-Body, 6-Inch (1794468)

1 – IRWIN Tools Combination Square, Metal-Body, 6-Inch (1794468)

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Features:

  • The black, precision-etched scales on this combination square give accurate 90° and 45° readings
  • This combination square has a cast-zinc body for durability
  • A stainless-steel blade is built for rugged use
  • 6" length

IRWIN Tools Combination Square, Metal-Body, 16-Inch (1794471)

2 – IRWIN Tools Combination Square, Metal-Body, 16-Inch (1794471)

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Features:

  • Precision-etched scales provide accurate 90-degree and 45-degree readings
  • The cast zinc body is durable and gives this combination square a comfortable weight and heft
  • The stainless steel blade is rust-proof and exceptionally durable

Starrett Combination Square, C11H-12-4R - Pre Cutting and Drilling Measuring Tool for Right Angles and Center with Heavy Duty Square Head, 12' for Woodworking, Carpentry, Machinists

3 – Starrett Combination Square, C11H-12-4R - Pre Cutting and Drilling Measuring Tool for Right Angles and Center with Heavy Duty Square Head, 12" for Woodworking, Carpentry, Machinists

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Features:

  • USED FOR: A Combination Square is a measurement tool with 2 straight edges set at right angles to each other; It’s used by carpenters & machinists for checking angles on materials before cutting or for locating center holes
  • BLADE DETAILS: Made with a hardened steel, machine divided, photo-engraved blade that has a satin finish, and measures 12" in length
  • STANDARD HEAD: The square head is made of heavy duty cast iron with a black wrinkle finish for measuring precise 90 degree angles
  • FEATURES: This model combination square has a reversible lock bolt, scriber, and spirit level
  • GRADUATION: Has a Type 4R graduation with quick readings for 8ths, 16ths, 32nds, and 64ths

Johnson Level & Tool 400EM-S Heavy Duty Professional Inch/Metric Metal Combination Square, 12', Silver, 1 Square

4 – Johnson Level & Tool 400EM-S Heavy Duty Professional Inch/Metric Metal Combination Square, 12", Silver, 1 Square

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Features:

  • COMBO SQUARE: The square head of this Johnson metal square ruler is CNC machined for enhanced precision. Its Auto-Lock blade assembly makes it easy to accurately align tools for usage. It gives the accuracy and precision needed for every job.
  • STAINLESS BLADE: This combination square tool has a stainless steel blade with English and metric graduations of 1/8", 1/16", and 1/32", as well as metric graduations that are permanently imprinted, so they will never fade or degrade.
  • CAST ZINC HEAD: The durable acrylic vial, heavy-duty cast zinc head with a chip-resistant e-coating finish, and reinforced screw-in scriber that won't fall out make this square withstand even the worst construction site usage.
  • APPLICATIONS: The CNC-machined head of the measuring tool acts as a stop, ensuring layout lines are always square to the edges. This makes it an ideal machinist's square, straightedge, adjustable try square, miter square, marking gauge, and depth gauge.
  • PRODUCT SPECIFICATIONS: This 12’’ combination square measures ‎0.75 × 5.5 × 12 inches and weighs 4.8 ounces (0.18 kg). This Johnson Level tool is designed and manufactured with precision in the United States.

Starrett Combination Square, 11H-6-4R - Pre Cutting, Drilling Measuring Tool for Right Angles, Center with Cast Iron Square Head, 6” for Woodworking, Carpentry, Machinists, 1

5 – Starrett Combination Square, 11H-6-4R - Pre Cutting, Drilling Measuring Tool for Right Angles, Center with Cast Iron Square Head, 6” for Woodworking, Carpentry, Machinists, 1

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Features:

  • USED FOR: A Combination Square is a measurement tool with 2 straight edges set at right angles to each other. It’s used by carpenters & machinists for checking angles on materials before cutting or for locating center holes.
  • BLADE DETAILS: Made with a hardened steel, machine divided blade and measures 6” in length.
  • STANDARD HEAD: The square head is made of heavy duty cast iron with a black wrinkle finish for measuring precise 90 degree angles.
  • FEATURES: This model combination square has a reversible lock bolt, scriber, and spirit level, and bearing surface that is accurately ground.
  • GRADUATION: Has a Type 4R graduation with quick readings for 1/8", 1/16", 1/32", and 1/64".

Mr. Pen- Combination Square, 12' Combo Square, Carpentry Tools, Carpenter Square, Woodworking Tools, Metal Ruler, Framing Square, T Square, T Ruler, Combination Square Set, Square Tool, Metal Square

6 – Mr. Pen- Combination Square, 12" Combo Square, Carpentry Tools, Carpenter Square, Woodworking Tools, Metal Ruler, Framing Square, T Square, T Ruler, Combination Square Set, Square Tool, Metal Square

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Features:

  • 12-Inch Heavy Duty Combination Square
  • Combo Square with Durable and Rust-Proof Stainless Steel Blade Marked with Precise inch and cm Graduation in 1/16,1/8, and 1/32 Inch
  • Spring Loaded Brass Bolt to Assure Accuracy
  • Brass Scriber and Level
  • Accurately Measure and Draw 90 Degree And 45 Degree Angles

Starrett 9-12-4R Combination Set

7 – Starrett 9-12-4R Combination Set

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Features:

  • Cast iron heads with black wrinkle finish
  • Graduation: No. 4R - 1/8", 1/16", quick reading 1/32", 1/64"
  • 4R Grad: 8ths, 16ths, Quick Reading 32nds, 64ths
  • Reversible lock bolts
  • Hardened steel, machine divided blade

Irwin Tools Combination Square, Metal-Body, 12', 1794469

8 – Irwin Tools Combination Square, Metal-Body, 12", 1794469

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Features:

  • Black precision-etched scales
  • Durable cast zinc body
  • Rust proof stainless steel blade
  • Perfect for 90° and 45° marking
  • Can be used as a gauge for transferring measurements

Starrett Combination Square, 11H-12-4R - Pre Cutting, Drilling Measuring Tool for Right Angles, Center with Cast Iron Square Head, 12” for Woodworking, Carpentry, Machinists

9 – Starrett Combination Square, 11H-12-4R - Pre Cutting, Drilling Measuring Tool for Right Angles, Center with Cast Iron Square Head, 12” for Woodworking, Carpentry, Machinists

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Features:

  • USED FOR: A Combination Square is a measurement tool with 2 straight edges set at right angles to each other. It’s used by carpenters & machinists for checking angles on materials before cutting or for locating center holes.
  • BLADE DETAILS: Made with a hardened steel, machine divided blade and measures 12” in length.
  • STANDARD HEAD: The square head is made of heavy duty cast iron with a black wrinkle finish for measuring precise 90 degree angles.
  • FEATURES: This model combination square has a reversible lock bolt, scriber, and spirit level, and bearing surface that is accurately ground.
  • GRADUATION: Has a Type 4R graduation with quick readings for 1/8", 1/16", 1/32", and 1/64".

iGaging Premium 4-Piece 12' 4R Combination Square

10 – iGaging Premium 4-Piece 12" 4R Combination Square

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Features:

  • Fully Hardened and Tempered Steel Blade; Satin Chrome finish
  • Etched, machine divided 4R graduations - 8ths, 16ths, 32nds & 64ths

 

What To Look For When Buying A Combination Square

The combination square is typically used to measure flatness of an object. The product is actually a grid printed on top of a high-resolution photographic paper. The grid has straight, unbroken lines and a specific number of points. To create the square, one needs to lay a piece of heavy card stock, making sure that it is straight and even. Using a level, draw a line across the top of the card stock to define its thickness.

A marking knife may also be required for the job. Better-quality square blocks are usually hardened steel and precisely etched. A straight edge may also be required for cutting along the edges. Some manufacturers use special software for combination squares. Some manufacturers combine several different types of tools in a single package to save time and money.

One can make these creations easily. However, it will be much easier to do if some direction knowledge is also possessed. This is where the markings on a square are really like lead dashes. Lead dashes usually have one vertical and horizontal line over each dot. One can also get some really cool designs by connecting lines in a diagonal fashion or by using multiple lead holders.

One can also use an electric marking pen for this task. Electric pens have a fine tip which makes them ideal for leaded combination squares. One can also use a double square tool for drawing in a perfect square without any gaps.

It is important to attach the blade to the metal square with care. It should slide easily without catching or tearing the material. To ensure accuracy it is advisable to place the knife edge of the blade across the joint. This ensures that the square is straight and the knife does not move when it is being cut. One can either use nails or needle nose pliers to hold the blade in place.

With this technique it is possible to draw a square and ensure that it is straight. After the square has been straightened out it is necessary to make sure that the edges of the square lie in a straight line. This is achieved by using the inner edge of the blade as a guide. The outer edge of the blade can then be used as a ruler to ensure that the right lines are drawn.

A nice and easy way to make a starrett combination square is to use a narrow starrett pattern as a guide. This is available from many sources on eBay. The pattern can then be laid over the flat surface that the starrett pattern fits onto. Once the inner edge of the blade has been placed it is possible to simply notch the outer edge of the starrett pattern leaving around two centimetres of space between the starrett edge and the edges of the cutting board.

A final option for creating a Combination Square is to draw a square that is slightly outside the perimeter of the flat surface and place the blade in position. With the help of the tape measure, draw a line down one side of the square that corresponds to the measurement given on the eBay listing for the item that will be framed. Cut strips of paper to fit along the inner and outer edges of this square. These should be placed along the drawing line that was created to define the height of the frame. These framing strips should then be sewn to the back of the square.

Beveling and combing are popular methods of constructing Combination squares but there are other options that can also be used. For example, some furniture companies offer bespoke beveling and combing. This may involve getting measurements from a photograph or using templates to create the design. If you are buying pre-fabricated Combination squares, they may come with instructions to fit them together but if you try it yourself you will need to work out your own dimensions and method of cutting them to size. Beveled and combed Combination squares are often used to create elaborate beading and patterns such as doily’s and jewelled trim.

Some people choose to use Combination square kits. These come in different sizes and may come with detailed instructions or images to help you construct the pieces. If you are looking for a really unusual pattern that cannot be found elsewhere, you could consider buying an authentic designer Combination square. These may not be readily available on the high street but you are sure to find one that really likes you.

It is also possible to buy Combination squares that are ready to put together. If you are looking for a really unusual design you could choose to buy a ready square. The dovetails and clasps of these will be visible so you need to make sure that they really like each other before putting them together. The type of material you choose to have your Combination square made from will also influence your choice. Stone is a popular choice and many people choose this over wood. Wood can look ordinary once cut but a natural stone dovetail marker can make a real effect and the colours will contrast dramatically.