Alpen Cobalt Nirosta 5 Drill Bit, 50 mm.

Alpen cobalt nirosta drill bit. -Diameter: 5.5mm. -Special sharpening that guarantees optimal chip evacuation. -Great cutting precision and optimal self-centering. -Higher feed and drilling speed. -Especially suitable for tough and hard materials, such as stainless and acid-resistant chrome-nickel steels. -Made with cobalt, which is a very hard material, which provides great resistance to breakage and high temperatures.