AEG BSS 18MTF12BL-402C (4935479664)

DeWALT 8 drill flip drive complete unit allows for quick and easy changes between drilling and driving, letting the user finish jobs faster. These black oxide split-point drill bits start on contact a more→nd have a contoured finger grip for easy ergonomic use. These drive units feature quick change mechanism for easy one-step loading and are easy to push forward for one-handed release. A 5/16 inch shank for added durability and is one integral unit that keeps everything together and no lost parts. The multi-cutter countersinks for superior finish.

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

"The Milwaukee Red Helix Cobalt 1/2"" Drill Bit are engineered for extreme durability and longer life in hard metal applications. The Milwaukee Cobalt drill bits are designed with a Variable Helix tha more→t includes an aggressive 35 degrees Helix Angle which ends at 15 degrees. The 135 degrees split point tip delivers a precision start and prevents walking for fast, accurate holes in hard metals, PVC and wood. The tapered drill bits feature a new enhanced tapered web that strengthens the bit's core to increase flute durability. The cobalt twist drill bits are ideal for tough applications, providing up to 15X life vs. black oxide brill bits."