How to Use an Edge Finder to Locate the Center of a Hole


Here’s a real time saver, using an edge finder to locate the center of a hole instead of an indicator.

How to Build a Stack of Gauge Blocks

This video provides a short introduction to gauge blocks and how they are used in the machine shop, followed by a demonstration of how to select and wring blocks into a stack of the desired height

Common Methods of Measuring the Diameter of a Hole

Various ways to measure the diameter of a bored hole demonstrated on an actual part. Methods shown include the inside calipers, small hole gauges, telescoping gauges and gauge pins.

A Novel Approach to Reading the Micrometer,

A novel approach on how to read a micrometer that uses pocket change to give the numbers meaningful value.