Irwin 1/2 in. D High Speed Steel Countersink 1 pc

12411 1/2" COUNTERSINK *Drill Bit Diameter: 1/2 in. *Material: High Speed Steel *Product Type: Countersink *Number in Package: 1 pc. *Overall Length: 1-21/32 in. *Shank Type: Round Shank *Usage: Metal, Wood and Plastic *Shank Diameter: 1/4in. *Packaging Type: Carded *Precision ground 82 degree tip for countersinking most machinable metals, wood or plastic *Made from industrial grade high speed steel for increased durability *Includes a black oxide finish for added corrosionresistance *Five flute design reduc