Milwaukee®’s spline 4-cutter rotary hammer drill bits feature a 4-cutter 4 x 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.

• 1-3/8 in. diameter, 4-cutter head
• Spline shank
• Drilling depth 17 in.
• Overall length 22 in.