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 * Round shanks allow use with a wide variety of toolholding systems * When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging * 60 piece drill bit set comes in a metal case