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Milwaukee®

1 X17 X 21-Inch MX4™ 4-Cutter SDS MAX Rotary Hammer Drill Bit

Mfg.#
48-20-3954
Sku#
3007085
  • Solid head carbide delivers up to 5x longer life in concrete with rebar
  • Sharp centering tip for exact spot drilling in concrete and metal decking
  • Meets ANSI B212.15 to fit common anchors
  • Rebar guards for maximum durability in hard aggregate and rebar
  • 4-cutter design prevents lock-up in rebar, reducing downtime

* Estimated stock levels as of Wed, Apr 1, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.

Description

Our MX4™ 4-Cutter SDS MAX Rotary Hammer Drill Bits with solid head carbide deliver up to 5x longer life in concrete with rebar. Engineered with rebar guards to provide maximum durability in hard aggregate and rebar. We designed our MX4™ 4-Cutter bits with sharp centering tips for exact spot drilling in concrete. The integrated 4-cutter design prevents lock-up in rebar, reducing downtime. Optimized flutes remove dust faster, reducing heat and delivering up to 15% more holes per battery charge. The wear mark indicator on each drill bit shows you when they no longer meet the ANSI requirement. These MILWAUKEE® MX4™ 4-Cutter Drill Bits are ideal for concrete with rebar and masonry applications.

Specifications

General

Color Silver
Type Hammer Drill Bit

Dimensions

Diameter 1 in

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