Engineered for maximum durability, these MX4 4-cutter bits deliver up to 5x longer life in concrete with rebar. The integrated 4-cutter design prevents lock-up, while variable flutes remove dust faster to increase efficiency and reduce heat.

• 4-Cutter design prevents lock-up in rebar to reduce downtime
• Variable flutes remove dust faster, reducing heat and delivering up to 15% more holes per battery charge
• Engineered with rebar guards for maximum durability in hard aggregate
• Sharp centering tips allow for exact spot drilling in concrete
• Integrated wear mark indicators signal when the bit no longer meets ANSI requirements
• German-made carbide construction for professional-grade performance
• Meets ANSI B212.15 to ensure compatibility with common anchors
• Compatible with all SDS-MAX rotary hammers