Milwaukee 48-20-7256 SDS Plus MX4 4-Cutter Rotary Hammer Drill Bit, 1-1/8" x 16" x 18"

Milwaukee 48-20-7256 SDS Plus MX4 4-Cutter Rotary Hammer Drill Bit, 1-1/8" x 16" x 18"

The Milwaukee 48-20-7256 is a heavy-duty SDS Plus rotary hammer drill bit engineered with Milwaukee's MX4 four-cutter (4CT) carbide tip design for fast, aggressive drilling in concrete, block, and masonry. This standard rotary hammer bit measures 1-1/8" in diameter with a 16" flute length and 18" overall length, giving professionals the diameter and reach needed for deep anchor holes and through-wall penetrations. The 4-cutter carbide head geometry is engineered to bite quickly, resist chipping, and stay sharp longer than standard 2-cutter designs under repeated hammer-drilling impact. Built with an SDS Plus shank, this bit is designed to lock securely into SDS Plus rotary hammers for reliable, professional jobsite performance.

Key Features

• Bit Diameter: 1-1/8" diameter delivers a large-hole cut for anchors, conduit, and utility penetrations in concrete and masonry.
• Flute Length: 16" flute length promotes efficient dust and debris removal during deep-hole drilling.
• Overall Length: 18" overall length provides the reach required for thick concrete, block, and masonry walls.
• SDS Plus Shank: Engineered to fit SDS Plus rotary hammer chucks for quick, secure bit changes on the jobsite.
• MX4 4-Cutter Carbide Head: Four-cutter (4CT) carbide tip design increases drilling speed and extends bit life versus standard cutter geometries.
• Heavy-Duty Standard Design: Built as a standard-duty rotary hammer bit for demanding, repetitive professional drilling applications.
• Durable Bit Body: Constructed to withstand repeated hammer-drill impact cycles in dense concrete and masonry materials.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Drilling Anchor Holes in Concrete and Masonry
• Conduit and Utility Penetrations Through Concrete Walls
• Rebar and Rod Setting in Concrete Structures
• Commercial and Industrial Concrete Drilling
• Renovation and New Construction Projects

Why Milwaukee?

Milwaukee engineers the 48-20-7256 rotary hammer bit with MX4 four-cutter carbide tip technology to deliver aggressive drilling speed and extended bit life on demanding concrete and masonry jobsites. The SDS Plus shank ensures dependable, secure compatibility with SDS Plus rotary hammer tools, while the 1-1/8" x 16" x 18" sizing gives professionals the diameter, flute length, and overall reach needed for heavy-duty drilling tasks. Choose the Milwaukee 48-20-7256 for a professional-grade rotary hammer bit built to perform consistently through demanding concrete and masonry applications.