Pdg/R/6 Groz Depth Gauge & Protractor, Rectangular Head, 150Mm Blade

A versatile tool, the Depth Gauge with Protractor allows for measurement of both angles and depths.
Manufactured from stainless steel, the protractor head has permanent deep etched graduations, 0°-180° in opposite directions, thus permitting reading an angle directly and also its supplement.
Depths are measured by a 150mm (6") steel rule. It is graduated in imperial dimensions on one side and metric on the other and can be set at any desired angle for use as a protractor and lengthwise when used as a depth gauge. A knurled thumbnut locks the rule in the desired position.
The gauge has a flat surface on the back of the head permitting laying the tool flat upon the work. The rectangular head provides additional convenience as it incorporates 4 working edges.
Angular Tolerance : 0.5°