Walter 01M559 SST+ 135° 1/2" Prentice Cobalt Drill Bit, 59/64"

Walter 01M559 SST+ 135° 1/2" Prentice Cobalt Drill Bit, 59/64"

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.

Product Features

• Made with premium grade cobalt HSS to drill harder materials
• Self centering 135° split-point for reduced thrust requirements and minimized walking
• Cobalt drills can drill approximately 30% faster than HSS drills
• Special bronze SST surface treatment for extreme lubricity and life
• 1/2" reduced shank
• 3-flats shank for reduced slippage in drill chucks

Applications

• Drilling holes in high strength materials
• Heavy-duty drilling
• Drilling large diameter holes
• Drilling with handheld power tools