SST+ 1/2" Prentice are heavy-duty large diameter drill bits for use in portable drills, drill presses and magnetic base drills with 1/2" chuck capacity. Their extra hard tips allow for the drilling of many more holes between re-sharpenings. They are made with a cobalt blend for longer life.
Details
Material / For use on::
Mild steel; Non-ferrous metal; Stainless steel
Prod Tech Tips 1:
Speed, feed, and lube are all critical to cutting tool performance
Product Applications 01:
Drilling holes in high strength materials
Product Applications 03:
Drilling large diameter holes
Product Applications 04:
Drilling with handheld power tools
Tooling Drill Size Equivalent:
Tooling System Of Measurement:
Manufactured By:
Walter Surface
Other Details
3-flats shank for reduced slippage in drill chucks
Cobalt drills can drill approximately 30% faster than HSS drills
Made with premium grade cobalt HSS to drill harder materials
Self centering 135° split-point for reduced thrust requirements and minimized walking
Special bronze SST surface treatment for extreme lubricity and life