Pin Gage Set for Precision Hole Size Measurement

pin gage sets

Pin Gage Sets – Precision Diameter Measuring Tools for Quality Inspection

A Pin Gage Set is a collection of cylindrical precision gages used to measure and verify hole sizes, distances, and slot widths with exceptional accuracy. Each pin in the set has a tightly controlled diameter, typically made of hardened tool steel or carbide, ensuring durability and dimensional stability over time.

Pin gage sets are critical tools in quality control, tool making, and precision machining processes. They offer a fast, tactile, and reliable way to check go/no-go tolerances, hole alignments, and internal geometries without requiring complex setups or electronics.

Key Features of Pin Gage Sets

High Dimensional Accuracy

Ensures precise go/no-go hole measurement.

Hardened Steel Construction

Durable and wear-resistant for long-term use.

Wide Range of Sizes

Covers multiple diameters for various applications.

Clearly Marked Sizes

Easy identification for quick and efficient use.

Applications of Pin Gage Sets

  • Manufacturing Quality Control: Tolerance verification for drilled or machined holes.
  • Tool & Die Making: Checking fit of components during tool development.
  • Aerospace & Automotive: Ensuring precision in critical assemblies.
  • Medical Device Manufacturing: Verifying micro-hole diameters in implants and instruments.
  • Injection Molding: Inspecting core pin and mold cavity dimensions.

 

How to Use Pin Gage Sets

  1. Choose the Right Pin: Select the pin size closest to the hole or slot to be measured.
  2. Clean Surfaces: Ensure the pin and the hole are clean and free of debris or burrs.
  3. Insert Carefully: Gently insert the pin into the hole by hand—do not force it.
  4. Check Fit:  Should not enter the hole (no- go gage)
  5. Record Reading: Note the pin size used and determine the actual dimension or tolerance.

 Technical Specifications

Feature Details
Material Hardened Tool Steel / Tungsten Carbide
Tolerance Grade Class ZZ (±0.0002″), Z (±0.0001″), or X (±0.00004″)
Size Range 0.011″ to 1.000″ (inch sets) / 0.20 mm to 20.00 mm (metric)
Surface Finish Micro-polished, 8 µin or better
Hardness ≥ 60 HRC (Tool Steel) / ≥ 90 HRA (Carbide)
Marking Laser-etched or engraved sizes on each pin
Storage Case Included, foam-lined for protection and organization
Configuration Individual pins or full set with increments (0.001″, 0.02mm)

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