Gauge Block Set

The precision-engineered steel gauge block set is a collection of hardened, lapped steel blocks used as dimensional standards for calibration, measurement, and quality control in industrial and laboratory settings.

Designed with ultra-flat surfaces and exceptional wear resistance, these blocks ensure accurate length references through wringing (adhesion via molecular attraction).

Ideal for machining, metrology, and toolroom applications.

Introduction

Product details description

Features Description

Material & Durability

- High-grade tool steel (GCr15) with chrome plating for corrosion resistance and long-term stability.

- Hardened to 64-65 HRC to minimize wear and deformation.

Precision & Tolerance

- Complies with ISO 3650 or DIN 861 standards.

- Available in grades:

- **Grade 0 (AA): ±0.10 μm tolerance for laboratory/master calibration.

- **Grade 1 (A): ±0.20 μm tolerance for workshop use.

Surface Finish

- Lapped to a mirror-like finish (Ra ≤0.025 μm) for optimal wringing performance.

- Parallelism deviation ≤0.10 μm.

Temperature Compensation

- Calibrated at 20°C (68°F) with thermal expansion coefficients matched to industrial environments.

Set Configuration

- Common sets include 8,32,38,47,83,87, 103, 112 or 122 blocks covering a wide dimensional range (e.g., 0.5 mm to 1000 mm).

- Blocks combined via wringing to achieve precise lengths.

Applications

- Calibration of micrometers, dial indicators, and CMMs.

- Verification of machine tools, jigs, and fixtures.

Packaging & Accessories

- Housed in a protective wooden or plastic case with foam inserts.

- Optional accessories: Calibration certificates (NIST-traceable), wrung cloth, and handling tools.

Certifications

- Traceable to international standards (e.g., ISO, NIST, JIS).

Product Specifications Table

Grade 0,1,2
Code	Qty(pcs)	Size(mm)	Step(mm)
1202-1	8	125-175	25
		200-250	50
		300-500	100
1202-2	32	1.005
		1.01-1.09	0.01
		1.1-1.9	0.1
		1-9	1
		10-30	10
		50
1202-3	47	1.005
		1.01-1.19	0.01
		1.2-1.9	0.1
		2-9	1
		10-100	10
1202-4	83	0.5
		1
		1.005
		1.01-1.49	0.01
		1.5-1.9	0.1
		2-9.5	0.5
		10-100	10
1202-5	112	0.5
		1
		1.0005
		1.001-1.009	0.001
		1.01-1.49	0.01
		1.5-25	0.5
		50-100	25