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

• 4-Cutter design prevents lock-up when hitting rebar, significantly reducing downtime
• Carbide heads with rebar guards deliver up to 4x longer life in concrete and hard aggregate
• Variable flute design removes dust faster, delivering up to 15% more holes per battery charge
• Sharp centering tips allow for exact spot drilling in masonry and concrete
• Integrated wear mark indicator signals when the bit no longer meets ANSI requirements
• German-made quality compatible with all SDS-MAX rotary hammers
• Meets ANSI B212.15 standards to fit common anchors