Flexible Rulers | McMaster-Carr

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466 Products

Horizontal Rulers

Corrosion-Resistant Stainless Steel Rulers

Made to last, our most corrosion-resistant rulers are stainless steel and have wear-resistant etched markings.

Certified Corrosion-Resistant Stainless Steel Rulers

A calibration certificate traceable to NIST is included with these stainless steel rulers.

Easy-to-Read High-Contrast Rulers

Numbers and graduations etched in light colors are easy to see on a black background.

Easy-to-Read Rulers with Bold Markings

Rulers have large numbers and deeply etched graduations.

Transparent Rulers

Keep your workpiece in view as you measure with these see-through rulers.

Nonslip Rulers

A cork back prevents slipping and protects delicate surfaces.

High-Accuracy Rulers

An economical alternative to Starrett High-Accuracy Rulers, these provide reliable, repeatable measurements.

Certified High-Accuracy Rulers

These rulers include a certificate of calibration traceable to NIST with test measurements that confirm accuracy.

Starrett High-Accuracy Rulers

Also known as machinists’ rules, these rulers ensure reliable, repeatable measurements.

Scratch-Resistant High-Accuracy Rulers

Protect your ruler from scratches and wear with a TiN (titanium nitride) coating.

Adhesive-Back Rulers

Permanently mount these rulers to a machine or workbench.

Half-Measure Adhesive-Back Rulers

Use to find diameters and centers.

Pocket Rulers

Rulers are narrow, flexible and just 6" long to measure in tight, slightly curved spaces.

Long-Length Rulers

Create a ruler up to 192" long by adding continuous segments.

Vertical Rulers

Adhesive-Back Vertical Rulers

Permanently mount these rulers on machines, tanks, and walls to measure heights and depths.

Adhesive-Back Vertical Rulers for Floors

These extra-thick rulers have a polycarbonate coating that resists wear from traffic and chemicals.

Half-Measure Adhesive-Back Vertical Rulers

The graduations on these rulers are half the actual length of the object you are measuring.

Vertical Rulers with Hook

A hook grabs the edge of an object for easy alignment.

Long-Length Vertical Rulers

Use to measure heights and tank levels.

Center-Finding Rulers

Pocket Center-Finding Rulers

Slip these rulers into your pocket, so they’re always on hand to find center readings. All are narrow and about 6" long to measure in tight spaces.

Center-Finding Rulers

Zero marks the center when these rulers are positioned so the same number touches each side of an object.

Printers' Pica Rulers

Printers' Pica Rulers

Rulers are marked with picas for working with type.

Circumference Rulers

Circumference Rulers

Circumference Rulers

Determine the circumference of a circle without calculations.

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)