Aluminum Rulers | McMaster-Carr

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144 Products

About High-Quality Rulers

What separates a throwaway ruler from one you’ll keep for decades, which type is best for everyday use, and how to compare materials.

Rulers

Horizontal Rulers

Rulers

Your go-to rulers for everyday measuring—available with certificates traceable to NIST

43 products

Easy-Read Rulers

Measure where it's too bright or too dark to read a standard metal ruler

45 products

Pocket Rulers

No bigger than a pen for measuring on the go

1 product

Pocket Center-Finding Rulers

Tuck into your pocket to find the center of workpieces on the go

2 products

Rulers for Cutting

Prevent nicking your fingers while measuring and cutting straight lines

7 products

Vertical Rulers

Measure height and depth without reading sideways

2 products

Scale Rulers

Pocket Drafting Rulers

Slip into your pocket for scaled-down drawings on the go

3 products

Other Products

Diameter Identifiers

Tighten the strap around rods, drill bits, and other small items to measure outer diameter

1 product

Squares

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

13 products

Calipers

Take inside, outside, and depth measurements with more precision than a ruler

5 products

Protractors

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

4 products

Linear Scales

Measure and display the position of tools on machines, such as lathes, saws, and drill presses

10 products

Leveling Rods

Use with sight levels to estimate the distance between you and a given object

2 products

Angle Transfers

Duplicate any angle in construction and other applications

1 product

Levels

Ensure surfaces are completely horizontal or vertical

4 products