Drill America 1.5" x 12" HSS Drill Bit Extra Long with 1.8cm Shank

High-speed steel tools are good for most general applications and offer a combination of hardness and toughness for wear resistance The black oxide treatment adds sliding ability and creates small pockets on the surface of the tool that keep coolant near the cutting edge For general drilling in applications requiring extra length for range, designed to work in a wide range of materials in the iron and steel families Round shafts allow for use with a variety of tool holder systems If the tools rotate counterclockwise (right cuts), spiral ribbed tools remove chips upwards and out of the cut to reduce clogging