ARTU 5/32 In. x 3-1/8 In. Cobalt and Tungsten Carbide Glass & Tile Drill Bit Pack options:Pack of 1 and a roughing knife

and a roughing knife

holes for mechanical piping or general layout of arcs and circles

Will not cut or snag with notched trowel when applying tile setting compound

while sturdy glides make sliding easy

ensuring dust and microparticle collection of debris such as concrete dust

ARTU 5/32 In. x 3-1/8 In. Cobalt and Tungsten Carbide Glass & Tile Drill Bit Pack options:Pack of 1 and a roughing knifeUnique point grinding allows for extreme low drilling pressure with excellent centering. Drill bit will not walk. Tape or center punching is no longer needed. Nice, clean holes with little to no chipping and long drill bit life. Ground double flute ensures fast and efficient removal of the drill dust and prevents clogging. The bit is ideal for drilling porcelain tiles up to a scratch hardness of 8. The unique 4 face point grinding extends the drill