Grand DA-12

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.

DeWalt screwdriving bit tips are a perfect complement to your drill and driver and are designed to meet the demands of working professional contractors. Each bit is cut from shock-resistant tool steel more→and features an advanced hardening process that greatly reduces wear. Its snub-nose design fits perfectly into hex-socket adapters and the tips are precision ground to seat firmly into the screw head.

The Milwaukee 2 in. SwitchBlade Selfeed Bit drills up to 12% faster and delivers up to 2X longer life. Designed for any trade that demands repetitive cutting of large holes in wood, SwitchBlade bits a more→llow you to remove and replace blades rather than resharpen. You get a new bit with every quick, convenient change of the hardened steel blade and less downtime on the job. An aggressive feed screw design enables the bit to pull through quickly for faster drilling. Built to last and designed to perform, Milwaukee SwitchBlade Selfeed bits deliver more holes for the money.