Engineered with rebar guards and a 4-cutter design, these MX4 bits deliver up to 5x longer life in concrete with rebar. Variable flutes remove dust faster to reduce heat, delivering up to 15% more holes per battery charge.

• 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 extended service life
• Compatible with all SDS-MAX rotary hammers and meets ANSI B212.15 for common anchors