Precision Blocks | McMaster-Carr

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

REACH Compliant

	Manufacturer Manufacturer

Mitutoyo

Starrett

	Manufacturer Model Number Manufacturer Model Number

	Hole Diameter Hole Diameter

	Gauge Block Grade Gauge Block Grade

AS-1

AS-2

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

RoHS Compliant

	Number of Pieces Number of Pieces

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290 Products

Tool Accuracy Checkers

Gauge Blocks

Vital for dimensional quality control, these gauge blocks are often used for precision layout, machine setup, and producing close-tolerance dies and fixtures.

Mitutoyo Gauge Block Sets

Use these Mitutoyo gauge block sets for precision layout, machine setup, and producing close-tolerance dies and fixtures.

Economy Gauge Block Sets

Use these gauge block sets for precision layout, machine setup, and producing close-tolerance dies and fixtures.

Starrett Gauge Block Sets

Use these Starrett gauge block sets for precision layout, machine setup, and producing close-tolerance dies and fixtures.

Angle Block Sets

Create and check angles with these precision-ground blocks. Each block is labeled with its angle.

Setup Blocks

Use these tight-tolerance blocks as mounting bases and supports to ensure accurate angles and spacing.