Drill America DWDTS Series High-Speed Steel Taper Shank Drill Bit, Black Oxide Finish, 2 Morse Taper Shank, Spiral Flute, 118 Degrees Conventional Point, 5/8" Size (Pack of 1)

High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge Morse taper shank allows the tool to be inserted directly into the machine's spindle to facilitate high-torque applications such as large cut diameters When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging Designed to perform in a broad range of materials in the iron and steel families