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5 flute design reduces vibration for smoother drilling
Features of the scraper blades include induction hardened blade edges for maximum durability
Mode #3 delivers maximum performance for the toughest applications (0 to 2900 rpm
25% more carbide per tooth and an optimized tooth design delivers extreme life in metal cutting applications
fiberglass and other machinable materials
ARTU 5/16 In. x 4-1/2 In. Cobalt and Tungsten Carbide Glass & Tile Drill Bit PROvantage 5 flute design reduces vibrationUnique 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