Calibration Squares | McMaster-Carr

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Measuring Component

Square Head with Built-In Level

Manufacturer Model Number

279 Products

Measuring and Inspecting

Squares

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

114 products

Calibration Squares

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

2 products

Angle Indicators

Align pipe and other equipment by measuring angle, level, or tilt

24 products

Squareness Gauges

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

3 products

Protractors

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

36 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

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

41 products

Level Mounts

Strap to nonmagnetic surfaces to attach a magnetic level

2 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

Straightedge/Protractors

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

2 products

Center Punch/Angle Indicators

Find the center of pipe and other parts and determine setup angles on milling machines and grinders

5 products

Fabricating and Machining

Multitools

A variety of tools and blades all in one

1 product