Alpen Hss Super 9.00mm Drill Bit.

Alpen hss super drill bit. -Diameter: 9.0mm. -Precision grinding, minimum tolerances, maximum concentricity precision. -Precise milling due to its optimized sharpening of the tip. -Made of top quality steel. -Resistant to breakage, due to controlled heat treatment. -Suitable for construction steels, easy-cutting steels, unalloyed steels, copper, brass, aluminum and plastic.