Milwaukee MX4 4-Cutter SDS MAX Rotary Hammer Drill Bit 48-20-3972

MAXIMUM REINFORCED CONCRETE PENETRATION

Engineered for the most demanding jobsite environments, the Milwaukee 48-20-3972 MX4 bit utilizes a solid-head carbide design to deliver relentless performance in rebar-reinforced concrete. While standard bits fail upon contact with structural steel, the MX4's precision-ground geometry maintains structural integrity, ensuring consistent hole diameters for critical anchoring applications. This is the industrial standard for operators requiring maximum uptime and superior fleet ROI in hard aggregate applications.

• / Solid Head Carbide: Delivers up to 5x more life in rebar compared to standard tipped bits.
• / 4-Cutter Geometry: Eliminates binding and reduces vibration for smoother drilling in high-torque rotary hammers.
• / Rebar Guards: Strategically designed to prevent tip damage during direct hits on structural steel reinforcement.
• / Large Flute Capacity: Optimizes debris extraction to prevent thermal accumulation and bit seizing in deep holes.
• / Wear Mark Indicators: Provides clear visual confirmation that the bit still meets ANSI diameter tolerances for anchor setting.

WHAT'S IN THE BOX

• / (1) MX4 4-Cutter SDS MAX Rotary Hammer Drill Bit (48-20-3972)