Alpen Cobalt Drill Bit 9.50 Mm.

Alpen cobalt drill bit 9.50 mm. Diameter: 9.5mm. Self-centering due to its specially sharpened tip. Tolerance up to 600º c. thermal stress. Due to its special sharpening, it allows easier drilling with up to 50% lower pressure than normal.. Suitable for construction steels, alloy steels, stainless steel, copper, brass, aluminium and plastic. Made with cobalt, which is a very hard material, providing great resistance to breakage and high temperatures.