Milwaukee MX4 4-Cutter SDS MAX Rotary Hammer Drill Bit 1-1/8" x 17" x 21" 48-20-8466

MAXIMUM REBAR ENDURANCE WITH SOLID HEAD CARBIDE

The mechanical engineering behind the MX4 series represents a critical advancement in consumable durability for high-torque SDS MAX applications. By utilizing a solid head carbide design rather than a standard brazed tip, this bit effectively eliminates the primary failure point encountered when drilling through reinforced concrete. Optimized for the power delivery of modern cordless rotary hammers, the 4-cutter geometry prevents lock-up in rebar, ensuring consistent productivity and protecting the tool's internal clutch mechanisms. The specialized flute design accelerates dust extraction, which significantly reduces thermal buildup and allows for up to 15% more holes per battery charge, maximizing professional ROI on the jobsite.

• / Solid Head Carbide construction delivers up to 5x longer service life in heavy-duty concrete and rebar applications.
• / Integrated rebar guards provide maximum durability in hard aggregate, preventing tip fracture upon impact.
• / Sharp centering tip allows for exact spot drilling, preventing bit walk on smooth concrete or metal decking.
• / Wear mark indicators provide a clear visual reference for ANSI B212.15 compliance, ensuring anchor fitment accuracy.
• / Optimized 4-cutter flute geometry removes dust faster to reduce heat and increase holes per charge on cordless platforms.

TECHNICAL SPECIFICATIONS

Diameter	1-1/8"
Usable Length	17"
Overall Length	21"
Shank Style	SDS-MAX
Cutter Quantity	4-Cutter
Compliance	ANSI B212.15
Manufacturing	German Made

WHAT'S IN THE BOX

(1) 1-1/8" x 17" x 21" MX4™ 4-Cutter SDS MAX Rotary Hammer Drill Bit (48-20-8466)