AMS Piano Tools
This is a must-have tool for any serious technician. Etched measurements make it easy to read down to 1/32 of an inch or to the nearest 1 mm. On the reverse, is a handy decimal equivalent chart for quick reference. The sliding clip can be used as a depth gauge for measuring hammer height, let-off and many other close-tolerance applications. Stainless steel. 1/2" wide x 6-3/8" long (overall).