3/8" HSS Threaded Shank Countersink (1/2") 1 pack These drills have a 5-1/2"

These drills have a 5-1/2" drilling depth and are sold individually

With a 135° split point tip

Threaded countersink cutters can be used in adjustable or micro-stop countersinking tools with a 1/4-28 threaded drive

KFD Killer Force Drill Bits are designed for hand-held and impact drills

3/8" HSS Threaded Shank Countersink (1/2") 1 pack These drills have a 5-1/2"Specifications PILOT SIZE 3 8" DECIMAL EQUIVALENT . 3750" BODY DIAMETER 1 2" MATERIAL HIGH SPEED STEEL THREAD SIZE 1 4 28 CUTTING ANGLE 100 SUGGESTED PACK QTY 1 Threaded countersink cutters can be used in adjustable or micro stop countersinking tools with a 1 4 28 threaded drive. They are made from high speed tool steel, precision ground to exact tolerances, and form relieved to ensure a 100 countersink angle concentricity.