Milwaukees Spline 4-Cutter Rotary Hammer Drill bits feature a 4-Cutter 4×90 tip geometry to avoid lock up in rebar, patented rebar chamfers for increased durability, and a high volume flute for fast debris removal. Used for drilling holes in brick, block, concrete, and reinforced concrete.
- 4-Cutter Head
- Highest quality carbide maximizes material pulverization
- Optimized flutes provide fastest debris extraction for faster drilling
- Spline shank





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