Features and Benefits: This is our most popular spot weld drill bit; 8.0mm or 5/16th is the most common size of spot welds that need to be removed; The Titanium coating on this bit will help prevent the bit from dulling due to overheating; The twist is the same size as the shank which is also 8.0mm and has a flat spot on it to be tightened into our DF-15 Series Spot Weld Drills; Specifically designed for the abuse of spot weld drilling; Flat ground for strength, centering nib to prevent walking; This Cobalt high-speed steel mix bit is 45mm long and works with all brands of spot-weld drills. Titanium (gold color) is a heat resistant coating that extends drill life by about 50%.

This bit is specifically designed to help the technician remove spot welds efficiently and fully. There is no pilot drill to break or create an unwanted hole. There are no plugs left behind to grind away.