Tyzack Universal gauge is a combined screw cutting and tool grinding gauge and twist drill.
It features 55° and 60° angles for checking Whitworth and metric threads as well as 90° and 120° angles. The drill check angle of 120° has a 30mm scale for checking the length of the cutting lips of a wide range of drill sizes up to 60mm diameter.
Made from stainless steel with black, etched graduations for easy reading.
