Alpen cobalt drill bit 1.00 mm. - Diameter: 1 mm. - Self-centering due to specially sharpened tip. - Tolerance of up to 600° C of thermal stress. - Due to its special sharpening it allows easier drilling with a pressure of up to 50% lower than normal. - Suitable for construction steel, alloy steels, stainless steel, copper, brass, aluminum and plastic. - Made from cobalt, a very hard material, which provides high levels of resistance to breakage and high temperatures. |