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Milwaukee®

MX4 SDS MAX Rotary Hammer Bit — 3/4 x 16 x 21 in., Carbide

Mfg.#
48-20-3932
Sku#
3007036
  • 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 Thu, Apr 9, 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

The Milwaukee 3/4 x 16 x 21-Inch MX4™ 4-Cutter SDS MAX Rotary Hammer Drill Bit is a heavy-duty concrete bit designed for contractors who need reliable performance in reinforced concrete and masonry. Solid head carbide and rebar guards extend life when hitting hard aggregate and rebar, while the 4-cutter design and sharp centering tip provide accurate, lock-up-resistant starts in concrete and metal decking. It meets ANSI B212.15 to fit common anchors and fits all SDS-MAX rotary hammers, making it easy to drop into the jobsite tool lineup. Optimized flutes pull dust out faster, reduce heat buildup and can deliver up to 15% more holes per battery charge, and Wear Mark Indicators show when the bit no longer meets ANSI requirements—useful for scheduling replacements during demanding drilling work.

Specifications

General

Color Silver
Type Hammer Drill Bit

Dimensions

Diameter 3/4 in

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