Hole Saw Kit HSS Bi-Metal HolesawHSS Bi Metal Hole Saw:Cutting steel and ... , steel plates, aluminum, copper, brass. Product Description: Hole Saw Kit HSS Bi-Metal Holesaw Material: M2 / M3 / M42 High speed steelTooth ... 8-17/64") Usage: Used in portable electric, air tools, drill presses, and lathes, boring mills, milling machines or any other ...