Description
6 Piece High Speed Steel 3 Flute Solid Pilot Counterbore Set ~ High speed steel. ~ 3-flute, straight shank. ~ Supplied with fitted wooden case. ~ Continuous pilot counterbores cut rapidly, smoothly and accurately producing long spiraling chips rather than small metal particles. ~ Set includes one each of 1/4, 5/16, 3/8, 1/2, 5/8, & 3/4″. ~ 1/4″ counterbore has a 9/32″ pilot diameter, a 13/32″ cutter diameter, a 5/16″ shank and is 5″ long. ~ 5/16″ counterbore has a 11/32″ pilot diameter, a 1/2″ cutter diameter, a 3/8″ shank and is 5″ long. ~ 3/8″ counterbore has a 13/32″ pilot diameter, a 19/32″ cutter diameter, a 1/2″ shank and is 6″ long. ~ 1/2″ counterbore has a 17/32″ pilot diameter, a 25/32″ cutter diameter, a 1/2″ shank and is 7-1/2″ long. ~ 5/8″ counterbore has a 21/32″ pilot diameter, a 31/32″ cutter diameter, a 5/8″ shank and is 7-1/2″ long. ~ 3/4″ counterbore has a 13/16″ pilot diameter, a 1-3/16″ cutter diameter, a 3/4″ shank and is 8″ long. High speed steel. 3-flute, straight shank. Supplied with fitted wooden case. Continuous pilot counterbores cut rapidly, smoothly and accurately producing long spiraling chips rather than small metal particles. Set includes one each of 1/4, 5/16, 3/8, 1/2, 5/8, & 3/4″.
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