When you need an exact measurement, nothing beats this precision tool
Synopsis: Take away the guesswork when fitting joinery and setting up machinery with machinist’s calipers. Here, Timothy Rousseau gives tips on choosing the best calipers for your needs, taking a precise measurement, and using them to ensure a perfect mortise-and-tenon joint. You’ll also learn how to set up machines for accurate cuts.
Machinist’s calipers may seem like a strange object to find in a woodshop, but when you need to measure something very accurately there isn’t a better tool for the job. Consider joinery. For a strong glue bond, a joint should be snug enough that the pieces won’t fall apart from gravity alone, but not so tight that they need to be pounded together. That’s a small margin of error, and a few thousandths of an inch can make a big difference.
Having a tool that will tell you exactly how big a…