Zz5500

 Drill Bit Set for Metal   Drill Bit Set for Metal   Drill Bit Set for Metal   Drill Bit Set for Metal   Drill Bit Set for Metal  IRWIN Countersink Drill Bit Set for Metal, 5-Piece (1877793)  Precision ground 82° tip for countersinking most machinable metals, wood, and plastic Made from industrial grade high speed steel for increased durability Includes a black oxide finish for added corrosion resistance Five-flute design reduces vibration for smoother drilling and extended life 1/4" round shank fits all handheld and stationary drills Product Description The IRWIN Metal Countersink Drill Bit Set features precision ground 82° tips for countersinking most machinable metals, wood, and plastic. Made from industrial grade high-speed steel for increased durability, each countersink has a black oxide coating to resist corrosion and a five-flute design that reduces vibration for smoother drilling and an extended life. Set includes 1/4", 3/8", 1/2", 5