Precise 40 Piece H.S.S. Interchangeable Pilot Type Counterbore Set

Precise 40 Piece H.S.S. Interchangeable Pilot Type Counterbore Set

• H.S.S. - High Speed Steel
• Hardness: 58 to 60 RC
• Complete set allows you to be organized
• Used to enlarge the opening of a hole to allow room for the head of a screw.
• Wide selection of counterbore sizes & pilots.

Includes:

Supplied in fitted case.

26 Pilots
3/32" shank: 1/8", 5/32", 3/16", 1/4"
5/32" shank: 3/16", 7/32", 1/4", 9/32", 5/16"
3/16" shank: 1/4", 5/16", 3/8", 7/16", 1/2"
1/4" shank: 5/16", 3/8", 7/16", 1/2", 9/16", 5/8"
5/16" shank: 3/8", 7/16", 1/2", 9/16", 5/8", 3/4"

13 Counterbores
1/4" thru 1" by 16ths.

26 Pilots
3/32" shank: 1/8", 5/32", 3/16", 1/4"
5/32" shank: 3/16", 7/32", 1/4", 9/32", 5/16"
3/16" shank: 1/4", 5/16", 3/8", 7/16", 1/2"
1/4" shank: 5/16", 3/8", 7/16", 1/2", 9/16", 5/8"
5/16" shank: 3/8", 7/16", 1/2", 9/16", 5/8", 3/4"

13 Counterbores
1/4" thru 1" by 16ths.