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

REINFORCED CONCRETE DOMINANCE WITH MX4™ TECHNOLOGY

When drilling into high-PSI concrete, the mechanical failure point is almost always the transition from aggregate to rebar. The Milwaukee MX4™ 4-Cutter series solves this through a solid head carbide design that eliminates the structural weaknesses of traditional brazed-tip bits. By utilizing a symmetric 4-cutter geometry, this bit prevents the common “lock-up” and binding that occurs when 2-cutter bits encounter steel reinforcement. For the professional, this translates to significantly reduced downtime and a lower cost-per-hole ratio. The variable flute geometry is specifically engineered for high-volume dust extraction, which lowers operating temperatures and preserves the bit’s tempering, while also reducing the load on your rotary hammer’s motor to deliver up to 20% more holes per charge.

• / Solid head carbide construction provides up to 5X longer life in heavy-duty concrete and rebar applications.
• / Integrated rebar guards protect the head from impact damage and binding when hitting steel.
• / Sharp centering tip ensures precise hole placement on smooth surfaces and metal decking.
• / Wear mark indicator provides a visual benchmark for ANSI B212.15 compliance, ensuring anchor fitment integrity.