Milwaukee MX4 4-Cutter SDS MAX Rotary Hammer Drill Bit 3/4" x 24" x 29" 48-20-3934

MAXIMUM REBAR PENETRATION AND EXTENDED SERVICE LIFE FOR SDS-MAX HAMMERS

When drilling deep, structural holes in reinforced concrete, the mechanical integrity of your consumable determines your jobsite efficiency. The Milwaukee MX4™ 4-Cutter SDS MAX bit is engineered to withstand the extreme thermal and mechanical stresses of high-capacity rotary hammers. By utilizing a solid head carbide design, these bits maintain their cutting edge up to 5x longer than standard alternatives, even when encountering heavy rebar. The 4-cutter geometry is critical for professional ROI; it prevents the bit from binding or locking up when hitting steel, which protects the tool's internal clutch and prevents sudden torque reactions that can cause operator fatigue. Furthermore, the optimized flute design facilitates rapid dust evacuation, reducing friction-induced heat and allowing cordless SDS MAX hammers to deliver up to 15% more holes per charge by minimizing motor strain.

• / Solid head carbide construction delivers up to 5x longer life in high-PSI concrete with rebar.
• / Integrated rebar guards provide maximum durability in hard aggregate, preventing premature bit failure.
• / Sharp centering tip ensures exact spot drilling, eliminating bit walk on metal decking or smooth concrete surfaces.
• / Optimized 4-flute design removes dust faster to reduce heat buildup and maximize battery run-time.
• / Wear mark indicators provide a clear visual reference to ensure the bit still meets ANSI B212.15 anchor fitment requirements.

WHAT'S IN THE BOX

(1) MX4™ 4-Cutter SDS MAX Rotary Hammer Drill Bit 3/4" x 24" x 29" (48-20-3934)