Engineered with a 4-cutter design and rebar guards, these MX4 bits deliver up to 5x longer life in concrete with rebar. Variable flutes accelerate dust removal 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 increasing holes per battery charge by up to 15%
• Solid carbide heads with rebar guards provide up to 5x longer life in concrete with rebar
• 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 designed to fit all SDS-MAX rotary hammers
• Meets ANSI B212.15 to ensure compatibility with common anchors