S&D Reduced Shank Drill Bit
High Speed Steel S&D drill bits offer superior performance over conventional HSS drills. Their Nitride treated, heavy-duty construction increases tool life and performance. 118 degree Split Point reduces walking at the drill point and makes these drills ideal for both hand held and CNC Operations. Black & Gold surface treatment for maximum lubricity. Usable in a wide range of materials including difficult to machine materials such as stainless steel. S&D drills expand the size range capacity of a 1/2" portable drill chuck.