TTC 01-135-101 1' Size Taper Shank Drill
The self-centering 118-degree split point goes on to further improve penetration. The drill bits have a tapered shank with standard morse tapper 1/2/3/4/5 for a firm grip. Standard style drills are available in fractional sizes of 1/4 inch to 2 inches. The base material used to make the drill bit is high speed steel.
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