Milwaukee SDS Plus 4CT MX4™ 5/16" X 4" X 6"

4-CUTTER CARBIDE PRECISION FOR HIGH-VOLUME ANCHORING

High-production concrete work demands a bit that won't seize the moment it hits rebar. The Milwaukee MX4 series is engineered for the professional who views downtime as lost revenue. Featuring a solid head carbide construction, these bits are built to withstand the thermal stress of hard aggregate and the mechanical shock of steel reinforcement. The 4-cutter geometry is the critical differentiator here; unlike standard 2-cutter bits that can bind and snap when encountering rebar, the MX4 glides through, maintaining hole concentricity for reliable anchor setting. For cordless users, the variable flute design is a game-changer, optimizing dust extraction to reduce friction and extend battery runtime by up to 20%.

• / Solid head carbide delivers up to 5x longer service life in heavy-duty concrete and rebar applications.
• / 4-cutter geometry prevents bit lock-up and binding, protecting the user and the rotary hammer's motor.
• / Sharp centering tip ensures precise placement on metal decking and smooth surfaces without bit walk.
• / Integrated wear mark indicator provides a clear visual gauge to ensure holes meet ANSI B212.15 tolerances for anchor security.
• / Variable flute geometry accelerates dust removal, keeping the bit cooler and maximizing holes per battery charge.

WHAT'S IN THE BOX

(15) 5/16" x 4" x 6" SDS Plus 4-Cutter MX4™ Drill Bits (48-20-7941)