IRWIN Countersink Drill Bit, Series: Speedbor, Adjustable, 9/64 in Pilot Dia, 5/16 in, 3-5/8 in Overall Length, NO 6 Screw, 1-3/4 in Flute Length, 1/4 in Shank, Applicable Materials: Wood, For Drilling Fast, Clean Pilot Holes and Ensures Tight Fit For Screws
IRWIN Countersink Drill Bit, Series: Speedbor, Adjustable, 9/64 in Pilot Dia, 5/16 in, 3-5/8 in Overall Length, NO 6 Screw, 1-3/4 in Flute Length, 1/4 in Shank, Applicable Materials: Wood, For Drilling Fast, Clean Pilot Holes and Ensures Tight Fit For Screws