Description
The thread Pitch Gauge used to measure the pitch of the thread, It sets 4pcs centre gage 55° Inch System..Package Content : 4 x Screw Pitch Gauge.This radius gauge has two types of leaves so it can check both convex and concave surfaces..There are four radium gauges in different shapes and sizes to meet you various need..Very useful gauge for tool & die makers, machinists, and many other worker to check the radius of tools.