Common tool steel supplied as a centre-less ground round bar.
Used to create tools such as punches, engravers, and screwdrivers.
Metric 333mm lengths of high carbon bright steel, precision ground to very close tolerances;
Above 25mm + - 0.025mm.
Below 25mm + - 0.0127mm.
Closely controlled analysis for uniform machining properties and consistent response to heat treatment. Chamfered, deburred ends for safety.