"A" HSS Threaded Shank Countersink (1/2") Left Hand Jobber Drills Fractional they can be used on

they can be used on softer materials such as wood

They are also suitable for drilling out broken bolts

while the high red hardness allows for drilling speeds up to 30% faster than standard M2 HSS

SIZE 3/8" OVERALL LENGTH 2-3/4" MATERIAL CARBIDE FINISH UNCOATED (BRIGHT) SHANK DIAMETER 1/4" NUMBER OF FLUTES 6 SHANK TYPE ROUND CUTTING ANGLE 90° SUGGESTED PACK QTY 1

while the round shank makes them compatible with various tool-holding systems

"A" HSS Threaded Shank Countersink (1/2") Left Hand Jobber Drills Fractional they can be used onSpecifications PILOT SIZE "A" DECIMAL EQUIVALENT . 2340" 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.