Alpen strong cobalt drill bit. - Diameter: 1 mm. - Self-centering provided by its specially sharpened tip. - Extra strong, due to an edge with a special nitro-oxide treatment. - High shaving evacuation capacity due to its deeper spiral. - Faster, due to the special sharpening of the groove and its tip. - Suitable for deep drilling depths. - 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. |