Milwaukee 5/8" x 13" x 18" MX4 4-Cutter SDS Max Rotary Hammer Drill Bit 48-20-3904

DOMINATE REBAR AND HARD AGGREGATE

When drilling deep into structural slabs or bridge decks, hitting rebar isn't a possibility—it's a guarantee. The MX4™ 4-Cutter SDS Max bit is engineered for these high-stress environments where downtime from a locked bit isn't an option. The solid head carbide construction maintains its geometry under extreme heat, while the integrated rebar guards deflect the impact of steel reinforcement, ensuring the bit stays true and doesn't shatter in the hole. Optimized for high-capacity rotary hammers, these bits maximize the energy transfer of the tool to deliver faster penetration in the toughest hard aggregates.

• / Solid head carbide delivers up to 5x longer life when encountering structural rebar.
• / Integrated 4-cutter design prevents binding and lock-up, protecting the operator and the tool's drivetrain.
• / Sharp centering tip ensures exact spot drilling, preventing bit walk on smooth or uneven concrete surfaces.
• / Wear mark indicators provide a clear visual reference to ensure holes meet ANSI B212.15 anchor requirements.
• / Optimized flute geometry clears dust rapidly to reduce heat buildup and increase holes per charge.

WHAT'S IN THE BOX

(1) 5/8" x 13" x 18" MX4™ 4-Cutter SDS Max Rotary Hammer Drill Bit (48-20-3904)