Walter SST+ 135 Prentice Fractional Drill Bits

Heavy-duty large diameter drill bits for use on portable drills, drill presses and magnetic base drills with 1/2" chuck capacity. Extra hard tip allows to drill many more holes between re-sharpenings. Now made with cobalt blend for longer life.

Feature:
3 flats on shank prevent slippage inside chuck Drills more holes, faster Exclusive point geometry eleminates pre-drilling Special bronze SST surface treatment

Application:
Drilling large diameter holes with portable drills Drilling of round surfaces Large diameter holes with stationary machines

Material:
Drilling large diameter holes with portable drills Drilling of round surfaces Large diameter holes with stationary machines

Tips:
Use Walter lubricants to drill even more holes Use at low speed and high feed

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