Bring a machinist's accuracy to your woodworking
Dial calipers remove the guesswork from taking measurements. You can use them to lay out joinery, measure hole or dowel diameters, check the width and depth of a dado or rabbet, check thicknesses — the list goes on. J. K. McMurtrey, a shop manager for a guitar manufacturer, and former machinist, explains how to read dial calipers and how to calibrate them. He diagrams the anatomy of a caliper and offers advice on how to evaluate features and prices.
From Fine Woodworking #144