Drill America 5 Piece High-Speed Steel Extra-Long Drill Bit Set (1/4-1/2" x 12" Long), POU Series

Sizes included are 1/4", 5/16", 3/8", 7/16" and 1/2" with overall length of 12" High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance For general purpose drilling in applications where extra length for reach is required, designed to perform in a broad range of materials in the iron and steel families When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging Round shanks allow use with a wide variety of tool holding systems