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Interchangeable among countersink & counterbore cutters.

Standard 6" overall length.

Units with double drive bayonet lock 8" overall length.
Item#:
BACK C-SINK STEP PIL
Precision ground with correct 100° cutting angle, for use in restricted areas.

Carbide kits for use with steel, inconel & composite materials.

Includes:
Six Pilots (3/32", 1/8", 5/32", 3/16", 1/4" & 5/16"), Seven Cutters (1/4", 5/16", 3/8", 7/16", 1/2", 9/16" & 5/8") & Heavy-Duty Polyethylene Case
Item#:
BACK SPOTFACER KIT
For restricted areas where conventional countersinks cannot be utilized.
Item#:
BACK COUNTER SINK
For restricted areas where conventional spotfacers cannot be utilized.

Note:
Corner radii: 1/32" H.S.S., 1/64" Carbide 'X' and 'BX' models carbide tipped, not solid carbide.
Item#:
BACK SPOTFACERS
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