Countersink Drill Bit Set, 5 Pieces High Speed Steel 82 Degree 5 Flute 6mm Round Shank Mill Cutter Bit Countersink in Sizes 1/4” 3/8” 1/2” 5/8” 3/4” Set with Carrying Case.

• VERSATILITY – Comes in 5 most popular sizes bits 1/4, 3/8, 1/2, 5/8, 3/4 inch counter sink drill bits for all your jobs
• PRECISION - 82-degree tip drills countersink holes into most machinable metals, plywood, softwood, hardwood, fiberglass plastic, mild steel. Cannot work on stainless steel
• COMPATIBILITY – 1/4” round shank fits all handheld and stationary drills and more tool
• EFFICIENT- Five-flute design reduces vibration and removes chip better, provides smoother drilling experience and extended bit life longer
• DURABILITY - Made from High-Speed Steel with golden oxide finish for corrosion resistance, please oil it after every use

Product Description： The Countersink Drill Bit Set made from industrial grade high-speed steel for increased durability, each countersink has a golden oxide coating to resist corrosion and a five-flute design removes chips faster and dills smoother and ensures an extended life. It features precision ground 82° tips for countersinking most machinable metals, wood, and plastic. Each set includes 1/4", 3/8", 1/2", 5/8", and 3/4" countersinks, and a padded carrying Case.