Chucking High Speed Steel Fraction - Number - Letter

For reaming Most materials

Diameter Tolerances

Up to 1/2" {.500"} +0.0002" / -0.0000"

1/2" TO 5/8" +0.0003" / -0.0000"

5/8" TO 1-1/2" +0.0001" / +0.0004"

Right Hand Helix = Pulls chip toward operator out of hole

Left Hand Helix = Pushes chip away from operator out bottom of hole

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