Alpen Cobalt Nirosta Drill Bit 4.00 mm. (Blister 1 Piece)

Alpen Cobalt Nirosta Drill Bit (1 Piece Blister). -Diameter: 4.0mm. -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.