Veritas Metric Bevel Setter.
This stainless steel bevel setting tool allows a sliding bevel to be set at any angle from 1deg to 60deg in 1/2deg increments. Similarly it can be used in conjunction with a bevel to check existing angles. The blade is 75 x 180mm, and the graduations etched for permanence. The reverse has common dovetail and polygon angles
Sliding bevel not included