Adjustable Squares | McMaster-Carr

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Square Head with Built-In Level

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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182 Products

Measuring and Inspecting

Squares

Check 90° angles during layout work with combination, angle, or pipefitters' squares

67 products

Combination Square Heads

Attach combination square blades to form a combination square

28 products

Combination Square Blades

Connect to a combination square head to create a combination square

17 products

Protractors

Set bevels and measure angles with everything from pocket-size to long-arm protractors

16 products

Calibration Squares

Lay horizontally or vertically on CNC machines to check the position of tools with high precision

2 products

Squareness Gauges

Check frames and machined parts to see if they are leaning or uneven

3 products

Angle Transfers

Duplicate any angle in construction and other applications

2 products

Straightedges

Draw straight lines and check the straightness of surfaces

1 product

Straightedge/Protractors

Draw straight lines and measure angle, slope, and rise with one tool

2 products

Inspection Setup Blocks

Line up workpieces at precise heights and angles for machining, measuring, and inspecting

2 products

Inspection V-Blocks

Cradle rods and other round workpieces for precision measuring or inspecting

10 products

Fabricating and Machining

Magnetic Clamps

Hold magnetic workpieces at common angles such as 90° or 45°

21 products

Fixture Squares

Build different fixtures on multiple sides of the same block

16 products