Milwaukee MX4 4-Cutter SDS Max Rotary Hammer Drill Bit 5/8" x 13" x 18" 48-20-3923

REINFORCED CONCRETE DOMINANCE WITH 4-CUTTER CARBIDE TECHNOLOGY

When your jobsite demands high-volume drilling through structural concrete and heavy rebar, the mechanical integrity of your bit determines your productivity. The Milwaukee MX4 4-Cutter SDS Max bit is engineered with a solid carbide head that eliminates the common failure points of brazed-on tips. By utilizing a symmetric 4-cutter geometry, this bit prevents the catastrophic lock-ups and binding that occur when standard bits encounter steel reinforcement. This design not only protects the operator from sudden torque kickback but also preserves the life of the rotary hammer's internal clutch. The optimized flute geometry facilitates rapid dust evacuation, which significantly reduces friction-induced heat—a primary killer of carbide—while allowing cordless SDS Max hammers to deliver up to 15% more holes per charge through reduced rotational resistance.

• / Solid head carbide construction provides up to 5x longer service life in heavy-duty concrete and rebar applications.
• / Integrated rebar guards shield the bit from damage during high-impact encounters with steel aggregate.
• / Sharp centering tip ensures precise hole placement and prevents bit walking on smooth concrete or metal decking.
• / Wear mark indicators provide a clear visual gauge to ensure holes remain within ANSI B212.15 tolerances for critical anchor setting.
• / High-volume flute design accelerates dust removal to keep the bit running cool and maximize battery efficiency.

WHAT'S IN THE BOX

(1) 5/8" x 13" x 18" MX4 4-Cutter SDS Max Rotary Hammer Drill Bit (48-20-3923)