Drill America 5 Piece High Speed Steel Reduced Shank Drill Bit Set in Plastic Pouch Case (9/16" - 1"), POU Series

Drill America black oxide high-speed steel drill bits are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Reduced Shank Drills expand the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes. Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge. For use in a wide range of materials in the iron and steel families such aluminum, iron, copper, brass and metal. Sizes included are 9/16", 5/8", 3/4", 7/8" and 1" with 1/2" reduced shanks