12413 3/4" COUNTERSINK *Drill Bit Diameter: 3/4 in. *Material: High Speed Steel *Product Type: Countersink *Number in Package: 1 pc. *Packaging Type: Carded *Usage: Metal, Wood and Plastic *Shank Type: Round Shank *Overall Length: 1-13/16 in. *Shank Diameter: 1/4 in. *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