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3/16" x 1/2" 3-Flute Flt Btm

$17.31

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3/16" x 1/2" 3-Flute Flat Bottom Counterbore with TiN coated twist drill

Use SD-3 Counterbores to drill a pilot hole and counterbore a flat bottomed hole in one step. Perfect for lag screws, lag bolts, washer head screws, T-nuts & more.

Drive Shank: 1/4" Hex Power Bit Shank
Drill Size: 3/16'
Counterbore Size: 1/2"

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