Vihr DU-550 (72/8/1)

Power through masonry, concrete, rock, and more with DEWALT Hammer Drill Bits. Featuring rock carbide tips that maximize surface contact for extended bit life and a 4-flute design that cleans debris w more→hile you work. 3 flats on the shank eliminate bit slippage.

The Milwaukee Shockwave Torx T20 2 in. Impact Duty Steel Torx Bits are engineered to be the most durable, best fitting driver bits on the market. The Wear Guard Tip delivers increased wear resistance more→which protects the fit over the life of the bit. The Shockzone is optimized for each tip type and length of driver bit to absorb peak torque and prevent breaking. The Custom Alloy76 has a customized steel and heat treatment per tip type to extend the life of the driver bits, providing up to 50X life vs. competitive impact driver bits. The Shockwave driver bits are built to deliver extreme durability for the most demanding applications.

For rotary drilling only. Includes 5/32 pilot bit which must be used first. Ideal for drilling porcelain tiles up to a scratch hardness of 8. The drill bit will not walk, tape or center punching is no more→longer needed. Flat bottom parabolic flute ensures fast and efficient removal of drill dust and prevents clogging. Cuts nice, clean holes with very little or no chipping; operate drill motor 400-600 RPM.