Engineers' Scales | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Graduation Marks Graduation Marks

	Numeric Increments Numeric Increments

	Length Length

	Width Width

	Thickness Thickness

	Material Material

	Flexibility Flexibility

Flexible

Rigid

	Numeric Marks Numeric Marks

	Color Color

	Silver		Black
	Gold		Clear
	White

	Reading Direction Reading Direction

Left to Right

Bottom to Top

Top to Bottom

	Manufacturer Manufacturer

Starrett

Lufkin

Stanley

	Manufacturer Model Number Manufacturer Model Number

	Graduation Mark Style Graduation Mark Style

Etched

Printed

	Certification Certification

NIST Calibration Certificate

NIST Calibration Certificate
with Test Data

	Graduation Color Graduation Color

	Black
	White
	Black and Red

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Graduation Location Graduation Location

	Case Material Case Material

Plastic

Metal

	Orientation Orientation

Horizontal

Vertical

	Blade Width Blade Width

3/8"

1/2"

3/4"

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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146 Products

Dimensional Measuring

Certified Corrosion-Resistant Stainless Steel Rulers

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

Corrosion-Resistant Stainless Steel Rulers

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

Easy-to-Read High-Contrast Rulers

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

Transparent Rulers

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

Lightweight Aluminum Rulers

Made of aluminum, these rulers are an economical alternative to stainless steel rulers.

Certified Lightweight Aluminum Rulers

Ensure accurate measurements with these certified rulers.

Certified High-Accuracy Rulers

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

High-Accuracy Rulers

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

Scratch-Resistant High-Accuracy Rulers

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

Starrett High-Accuracy Rulers

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

Starrett Certified High-Accuracy Rulers

Ensure reliable, repeatable measurements with these rulers.

Folding Rulers

Fold these rulers for convenient storage and transport.

Adhesive-Back Vertical Rulers

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

Stanley Heavy Duty PowerLock Tape Measures

All have a durable cast metal case that’s chrome-plated for corrosion resistance

Lufkin Tape Measures

These tape measures have a chrome-plated, impact-resistant plastic case.

Lufkin High-Visibility Tape Measures

A bright orange case makes these tape measures easy to spot.

Pocket Tape Measures with Corrosion-Resistant Blade

The blade on these tape measures is chrome-plated for durability and corrosion resistance.

Diameter Tape Measures

Also known as tree tapes, wrap these tape measures around circular items to determine diameter and measure circumference without the need for calculations.

Easy-Carry Long Tape Measures

Hold on to the large, rubber-coated handle while carrying these tape measures.

Long-Length Tank-Level Rulers

Connect continuous segments to create a ruler up to 10 ft. long.

Combination Squares

High-Accuracy Combination Square Blades

Blades are for use with High-Accuracy Combination Square Heads.

Starrett High-Accuracy Combination Squares

Replace your try square, miter square, depth gauge, height gauge, center-point finder, and level. The blade on these squares meets Fed. Spec. GGG-R-791H, which establishes uniform standards for accuracy, graduations, and size.

Starrett High-Accuracy Combination Square Blades

Use these blades with Starrett High-Accuracy Combination Square Heads. They meet Fed. Spec. GGG-R-791H, which establishes uniform standards for accuracy, graduations, and size.

Architects’ and Engineers’ Scales

Take measurements off of scaled architectural or engineering drawings with these specialized scales.