Titanium Nitride Drill Bit - 8x45mm | DF-1680T
The DF-1680T 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-15DX Series Spot Weld Drills. Our drill bits a specifically designed for the abuse of spot weld drilling.
These Cobalt high-speed steel mix bits are 45mm long and work with all brands of spot-weld drills. Titanium (gold colour) is a heat resistant coating that extends drill life by about 50%.