Squareness Gauges | McMaster-Carr

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Numeric Graduations

223 Products

Measuring and Inspecting

Squareness Gauges

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

3 products

Squares

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

114 products

Combination Square Heads

Attach combination square blades to form a combination square

28 products

Protractors

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

36 products

Combination Square Blades

Connect to a combination square head to create a combination square

17 products

Calibration Squares

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

2 products

Inspection Setup Blocks

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

2 products

Levels

Ensure surfaces are completely horizontal or vertical

16 products

Angle Transfers

Duplicate any angle in construction and other applications

2 products

Straightedges

Draw straight lines and check the straightness of surfaces

5 products

Fabricating and Machining

Multitools

A variety of tools and blades all in one

1 product

Rotary Angle Indexers

Position round workpieces at precise, repeatable angles for machining flats, hexes, and key slots

2 products