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Aircraft Counterbores

Aircraft Counterbores (Spotfacers)  Straight Shank

Very High Quality   Made in USA

Use with drill presses and portable drill motors to cut a flat area or seat, for a bolt head of nut, on a contoured or uneven surface.  Use with Spenro C-4890 series Counterbore pilots

 

 

Quantity Product Options Price
C-4880-1, 1/4" Diameter, 3/32" Pilot Hole, 1/4" Shank $19.95
C-4880-2, 9/32" Diameter, 3/32" Pilot Hole, 1/4" shank $19.95
C-4880-3, 5/16" Diameter, 3/32" Pilot Hole, 1/4" Shank $19.95
C-4880-4, 11/32" Diameter, 3/32" Pilot Hole, 1/4" Shank $19.95
C-4880-5, 3/8" Diameter, 3/32" Pilot Hole, 1/4" Shank $19.95
C-4880-7, 7/16" Diameter, 1/8" Pilot Hole, 1/4" Shank $23.73
C-4880-8, 15/32" Diameter, 1/8" Pilot Hole, 1/4" Shank $23.73
C-4880-9, 1/2" Diameter, 1/8" Pilot Hole, 1/4" Shank $23.95
C-4880-10, 17/32" Diameter, 1/8" Pilot Hole, 1/4" Shank $23.95
C-4880-11, 9/16" Diameter, 1/8" Pilot Hole, 1/4" Shank $24.29
C-4880-12, 19/32" Diameter, 1/8" Pilot Hole, 1/4" Shank $24.29
C-4880-13, 5/8" Diameter, 1/8" Pilot Hole, 1/4" Shank $24.57
C-4880-14, 21/32" Diameter, 3/16" Pilot Hole, 1/4" Shank $28.72
C-4880-15, 11/16" Diameter, 3/16" Pilot Hole, 1/4" Shank $28.95
C-4880-16, 23/32" Diameter, 3/16" Pilot Hole, 1/4" Shank $29.45
C-4880-17, 3/4" Diameter, 3/16" Pilot Hole, 1/4" Shank $29.45
C-4880-18, 25/32" Diameter, 3/16" Pilot Hole, 1/4" Shank $29.45
C-4880-19, 13/16" Diameter, 3/16" Pilot Hole, 1/4" Shank $29.82
C-4880-20, 27/32" Diameter, 3/16" Pilot Hole, 1/4" Shank $29.95
C-4880-21, 7/8" Diameter, 3/16" Pilot Hole, 1/4" Shank $29.95
C-4880-22, 29/32" Diameter, 3/16" Pilot Hole, 1/4" Shank $30.66
C-4880-23, 15/16" Diameter, 3/16" Pilot Hole, 1/4" Shank $30.66
C-4880-24, 31/32" Diameter, 3/16" Pilot Hole, 1/4" Shank $31.08
C-4880-25, 1" Diameter, 3/16" Pilot Hole, 1/4" Shank $31.08
C-4880-26, 1-1/16" Diameter, 3/16" Pilot Hole, 3/8" Shank $35.82
C-4880-27, 1-1/8" Diameter, 3/16" Pilot Hole, 3/8" Shank $36.84
C-4880-29, 1-1/4" Diameter, 3/16" Pilot Hole, 3/8" Shank $37.94
C-4880-32, 1-1/2" Diameter, 3/16" Pilot Hole, 3/8" Shank $41.37