5/16" HSS Threaded Shank Countersink (7/16") 12" HSS Aircraft Fractional Drills Size 7/16"-29/64" Overall Length 2-3/4"

Size 7/16"-29/64" Overall Length 2-3/4" Material High Speed Steel Finish Uncoated (Bright) Shank Size 1/2" Style Weldon Cutting Angle 82 Suggested Pack QTY 1

Single flute countersinks are great for chamfering

The 135° split point tip starts fast and drills true

SIZE 2" OVERALL LENGTH 3-3/8" MATERIAL HIGH SPEED STEEL FINISH UNCOATED (BRIGHT) SHANK DIAMETER 3/4" NUMBER OF FLUTES 1 SHANK TYPE ROUND CUTTING ANGLE 82° SUGGESTED PACK QTY 1

Our premium SDS Drill Bits are auto-weld manufactured with a Japanese-made carbide tip

5/16" HSS Threaded Shank Countersink (7/16") 12" HSS Aircraft Fractional Drills Size 7/16"-29/64" Overall Length 2-3/4"Specifications PILOT SIZE 5 16" DECIMAL EQUIVALENT . 3125" BODY DIAMETER 7 16" 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.