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Milwaukee MX4 4-Cutter SDS Max Rotary Hammer Drill Bit 48-20-3991

Milwaukee MX4 4-Cutter SDS Max Rotary Hammer Drill Bit 48-20-3991

Original price was: $159.00.Current price is: $79.50.

Availability: In Stock

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STRUCTURAL REBAR PENETRATION DOMINANCE

When you’re boring into bridge decks or structural footings, hitting Grade 60 rebar isn’t a possibilityit is a guarantee. The Milwaukee MX4 4-Cutter SDS Max bits are engineered for the brutal reality of heavy civil infrastructure, featuring a solid carbide head that refuses to yield when the aggregate gets aggressive. This isn’t just a consumable; it’s a precision-machined solution for maintaining hole concentricity and ensuring every mechanical anchor sets to spec without the downtime of bit lock-up or thermal failure.

  • / SOLID HEAD CARBIDE: Delivers up to 5X longer life in high-PSI concrete with embedded structural steel.
  • / INTEGRATED REBAR GUARDS: Maximum durability design prevents the bit from shattering upon contact with rebar.
  • / SHARP CENTERING TIP: Enables exact spot drilling on metal decking and hard aggregate without bit walk.
  • / VARIABLE FLUTE GEOMETRY: Clears dust and debris at high velocity to increase drilling speed and holes-per-charge by 15%.
  • / WEAR MARK INDICATOR: Provides immediate visual confirmation that the bit still meets ANSI B212.15 inspection requirements.

TECHNICAL SPECIFICATIONSShank Type: SDS Max
Cutter Configuration: 4-Cutter Solid Head
Material Application: Concrete with Rebar, Masonry, Hard Aggregate
Standard: ANSI B212.15 Compliant
Manufacturing: German Made

WHAT’S IN THE BOX

(1) MX4 4-Cutter SDS Max Rotary Hammer Drill Bit (48-20-3991)

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