DENDF1465 Features: -This German made bit may be used with off brand spot weld drills. -The twist is smaller than the shank which is 8.0mm and has a flat spot on it to be tightened into our DF-15 series Spot Weld Drills. -Specfically designed for the abuse of spot weld drilling. -Flat ground for strength, centering nib to prevent walkingThis Cobalt high speed steel mix bit is 45mm long and works with all brands of spot weld drills.. Unit Material: -Steel. Use Material: -Metal. Product Type: -Titanium Drill Bits. Dimensions: Overall Product Weight: -0.05 Pounds.