Type Description

Gage Tolerance Calculator

Use this utility to calculate the suggested Gage Tolerance and Go / No-Go gage dimensions

Tech Articles - Threads

Thread Measuring Wires per ASME B89.1.17

The use of thread measuring wires enables an accurate measurement of the simple pitch diameter of an external thread.

Tech Articles - Cylindrical

Black Guard Gages Sets & Pin / Plug Gages

Black Guard Gages prevent rust while providing a visual wear indicator.

Tech Articles - Cylindrical

Gage Tolerance Selection

How do you decide which cylindrical gage tolerance to use to inspect your product?

Tech Articles - Threads

Thread Pitch Conversion

Approximate conversions for Unified Inch, Threads per Inch to Metric Pitch


60° Thread Pre-Plate PD Calculator

Simply state the After Plating Pitch Diameter and your Min and Max plating thickness per surface. This tool will calculate the suggested before plating pitch diameter.

Published Articles

Depth Measurement - Quality Magazine

Is the hole too deep, not deep enough or just right?
As seen in Quality Magazine, January 2016

Tech Articles - Threads

Setting Adjustable Thread Ring Gages

Instructions to inspect, reset and calibrate adjustable thread ring gages with a truncated setting plug.

Tech Articles - Cylindrical

Reversible Plug Gage Assembly Components

Components of a typical Go / No-Go Plug Gage Assembly

Tech Articles - Threads

NPT and NPTF Thread Gages

NPT and NPTF Gage Basic User Guide


Cylindrical Gage Tolerance Chart ASME B89.1.5

Class XX, X, Y, Z and ZZ - Gage Tolerances