Federal Tool Solid Pilot Counter Bores, Three Flute, Straight Shank - 508-1/2-1

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508-1/2-1
Federal Tool Solid Pilot Counter Bores, Three Flute, Straight Shank

Features:
  • Solid Pilot Counterbores are .001 - .002 undersize for ease of entry
  • SET No. 508S7: 7 Piece SS Set Contains 1 piece each: No. 6, No. 10 1/4, 5/16, 3/8, 1/2 Supplied in Wood Block
  • SET No. 508S4: 4 Piece SS Set Contains 1 piece each: No. 8, No. 10, 1/4, 3/8 Supplied in Wood Block
1/2" Screw Size Solid Pilot Counter Bore