Milwaukee Tools Milwaukee SDS-Max 4-Cutter MX4 Carbide 1-5/8″ X 18″ X 23″ Drill Bit 48-20-3991

Milwaukee MX4 4-Cutter SDS MAX Rotary Hammer Drill Bits with solid head carbide deliver up to 5x longer life in concrete with rebar. Engineered with guards to provide maximum durability in hard aggregate and rebar. We designed our MX4™ 4-Cutter bits with sharp centering tips for exact spot drilling in concrete. The integrated 4-cutter design prevents lock-up in rebar; reducing downtime. These MILWAUKEE® MX4™ 4-Cutter Drill Bits are ideal for concrete with rebar and masonry applications.

• Solid head carbide for up to 5x longer life in concrete with rebar  
• Rebar guards for maximum durability in hard aggregate and rebar  
• Centering tip for exact spot drilling in concrete & metal decking  
• 4-cutter design prevents lock-up in rebar; reducing downtime  
• Variable flutes removes dust faster for up to 15% more holes per battery charge  
• German Made  
• Meets ANSI B212.15 to fit common anchors  
• Wear mark indicator to show end of life and when bit no longer meets the ANSI requirement  
• Fits all SDS-MAX rotary hammers