5/16" 120° HSS 6-Flute Chatterless Countersink 6" Cobalt Aircraft Fractional Drills reducing walking and ensuring cleaner

reducing walking and ensuring cleaner holes

SIZE 1-1/4" 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

Flute length: 6"

SIZE 2" OVERALL LENGTH 4-3/8" MATERIAL HIGH SPEED STEEL FINISH UNCOATED (BRIGHT) SHANK DIAMETER 1" NUMBER OF FLUTES 6 SHANK TYPE ROUND CUTTING ANGLE 82° SUGGESTED PACK QTY 1

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5/16" 120° HSS 6-Flute Chatterless Countersink 6" Cobalt Aircraft Fractional Drills reducing walking and ensuring cleanerSpecifications SIZE 5 16" OVERALL LENGTH 2" MATERIAL HIGH SPEED STEEL FINISH UNCOATED (BRIGHT) SHANK DIAMETER 1 4" NUMBER OF FLUTES 6 SHANK TYPE ROUND CUTTING ANGLE 120 SUGGESTED PACK QTY 1 6 flute countersinks, also known as chatterless countersinks, are designed to remove more metal compared to countersinks with fewer flutes. They are also more effective on harder materials and provide a more chatter free cut.