5 Must-Have Features in a pin gauge set

Author: Geoff

Jun. 30, 2025

What is a pin gauge used for?

What is a pin gauge used for?

Pin gauges are cylindrical pin shaped plugs sized to a high precision. The main function of a pin gauge is to inspect the inner diameters of your workpiece. They are commonly used similarly to a Go and No-Go gauge to qualify whether a hole is within a certain specification. You can also use it to test for geometric deviations in measurements. Pin gauges are useful for checking the straightness of a deep hole.

If you want to learn more, please visit our website RTP GAUGE.

They can be made of many types of materials: Steel, Carbide, Ceramic, Zirconia, Hard Metal Alloy. LFC is the authorized distributor of Eisen Pin Gauges. Eisen pin gauges are made of steel, ceramic (Zirconia) or Tungsten carbine.

Pin gauge can be sold as a set or individually. Pin gauges in a set come in assorted sizes with small increments. These increments can be in 0.01 mm or 0.001 mm depending on your requirements. These small increments are minute as pin gauge are typically used in smaller holes applications, which requires high precision and accuracy. Every pin is marked with its exact size so that the user can easily identify these pins.

How to use a pin gauge?

If you own a complete set of pin gauge, you can start by inserting the pin gauge with the smallest diameter into the workpiece hole. You can then insert the pin gauge in increasing order of size until you find the pin gauge that fits nicely into the workpiece bore. You should not push the pin gauge into the bore by force. Ideally, the minimum or “Go” pin is use for the lower limit of the bore. It should fit nicely with no force. The maximum or “No Go” pin gauge is for the upper limit. It will not fit even if a small force is applied to push it in.

Other Usage

Besides inspection of small holes, pin gauges can be used in many other ways, RTP GAUGE will show you below in the pictres:

Distance between holes 

Calibrating micrometers

Width of a groove

Acceptance judgement 

Further reading:
Basic Function Introduction - Frequency Measurement
10 Questions You Should to Know about Ground Anchor
Where to Find Quality Ground Finish Angle Plate Suppliers?
Essential Guide to Non-Magnetic Surface Plates
Cast Iron T Slotted Floor Plates vs Aluminum: Which Reigns Supreme?
Essential Guide to Choosing the Right Round CI Surface Plate
Top Benefits of Using a 3D Welding Table

For more information, please visit pin gauge set.

Dovetail

Inspection of engine parts

Overpin diameter of gear

Deflection of gear

About  RTP GAUGE

With strong R&D strength and technology, RTP GAUGE keeps trying to provide gauges with best quality and reliability. Because we are the pin gauge manufacturer in China, we can guarantee the low wholesale price of pin gauge we supply to the worldwide. Fast payment methods and on-time delivery can be promised. And we have at lease one year after-sale waranty for every customer. If you have any other questions abhout what is pin gauge used for, please feel free to contact us and get better solution for your projects.

Hot-sellers from RTP GAUGE:

Tungsten Carbibe Ring Gauge

Customized Ceramic Pin Gauge

Bea Steel Pin Gauge u Tool Set Plug Kit for Hole Urement ...

1. Mainly used to measure the size, distance and depth of the hole.
2. Can be used as a standard test tool for holes
3. Widely used in high-tech fields such as electronic boards, circuit boards, , accuracy machinery manufacturing, etc.
4. Made of GCR15 bearing steel material, and stable performance.
5. Including 50pcs pin gauges which is from 1.5mm to 1.99mm

Specification:
Features:
1. Mainly used to measure the size, distance and depth of the hole.
2. Can be used as a standard test tool for holes
3. Widely used in high-tech fields such as electronic boards, circuit boards, , accuracy machinery manufacturing, etc.
4. Made of GCR15 bearing steel material, and stable performance.
5. Including 50pcs pin gauges which is from 1.5mm to 1.99mm

Specification:
Condition: Brand new
Item Type: Pin Gauge
Material: GCR15 Bearing steel
Length: Approx. 50mm / 2in
Accuracy: ±0.001mm
Bearing Steel Hardness: 58-63HRC
Standard: 1.5-1.99mm, each has 0.01mm interval, a total of 50pcs
Package Size: Approx. 25.5 x 14.6 x 7.7cm / 10 x 5.7 x 3in

Package List:
50 x Pin Gauges
1 x English User Manual
1 x Wood Box

Want more information on ceramic pin gauge? Feel free to contact us.

Further reading:
How Ground Anchors Enhance Stability in Construction
Why Are Cast Iron Welding Tables Overlooked?
How to Choose China Precision Plates Factories Wisely
Custom Cast Iron Surface Boxes: Factory vs. DIY Solutions
7 Essential Tips for Buying a CI Surface Plate for Sale
What Features Should I Look for in a 3D Welding Table?
Quick Change Fixture Plate - CNC Machining - Practical Machinist

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