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