Milwaukee 4932451464 MX4 SDS+ 7 Pc Drill Bit Set  This SDS+ drill bit set contains 7 drill bits with 4 flute geometry and centering tips for easy spot drilling with pinpoint accuracy.  CONTENTS ø 5 x 115mm ø 6 x 115mm ø 8 x 115mm ø 6 x 165mm ø 8 x 165mm ø 10 x 165mm ø 12 x 160mm FEATURES Symmetrical 4 cutter geometry (4x90°) Perfect round holes for optimal anchor fitting The high volume 4 flute geometry ensures the optimum removal of dust and debris Centering tip for easy spot drilling with pinpoint accuracy Welded solid carbide tip on ø 5-10 mm allows for wider flute entrance leading to increased speed More carbide leads to a higher durability of the tip and higher lifetime 4 breaker points pulverize material more efficiently for faster drilling Enhanced rebar guards for an improved resistance when hitting rebar New variable flute design, with a thin flute at the tip for maximum debris extraction, higher speed and less friction Thick flute at the base for higher stability and reduced bit breakage Up to 20% more holes per battery charge vs 4 cutter drill bit in concrete and vs. previous generation Made in Germany