Carbide tipped for long life with spear pointed tip that reduces breakouts when drilling from one side. Provides smooth, accurate drilling in applications such as ceramic tile, mirrors, glass, marble tile, vitrolite, china drilling fastener holes in bathroom tile or for wall mirror.
IRWIN POWER-GRIP 50532 Drill Bit, 1/2 in Dia, Straight Shank
IRWIN POWER-GRIP 50512 Drill Bit, 3/16 in Dia, Straight Shank
IRWIN POWER-GRIP 50516 Drill Bit, 1/4 in Dia, Economy, Straight Shank
Jacobs 30827D Chuck Key, 1/4 to 3/8 in Chuck Key, 13/64 in Pilot, Steel