1" 120° HSS 3-Flute Countersink 12" HSS Aircraft Fractional Drills are commonly used to countersink

are commonly used to countersink holes for centers or to enlarge existing holes

SDS Carbide Tipped Drill Bits are designed for drilling stone or concrete

The surface is treated with abrasion-resistant black oxide

Size #4-#5 (Screw) Overall Length 1-1/2" Material High Speed Steel Finish Uncoated (Bright) Shank Size 1/4" Style Weldon Cutting Angle 82 Suggested Pack QTY 1

1" 120° HSS 3-Flute Countersink 12" HSS Aircraft Fractional Drills are commonly used to countersinkSpecifications SIZE 1" OVERALL LENGTH 3 1 2" MATERIAL HIGH SPEED STEEL FINISH UNCOATED (BRIGHT) SHANK DIAMETER 1 2" NUMBER OF FLUTES 3 SHANK TYPE ROUND CUTTING ANGLE 120 SUGGESTED PACK QTY 1 3 flute countersinks, also known as center reamers, are commonly used to countersink holes for centers or to enlarge existing holes.