Engineered for maximum durability, these MX4 4-cutter bits feature solid carbide heads and rebar guards to deliver up to 5x longer life in concrete with rebar. The advanced variable flute design removes dust faster to reduce heat, delivering up to 20% more holes per battery charge.

• 4-Cutter design prevents lock-up when hitting rebar, significantly reducing downtime
• Solid carbide heads and rebar guards provide up to 5x longer life in concrete with rebar
• Variable flutes optimize dust removal to reduce heat and increase holes per battery charge by up to 20%
• Sharp centering tips allow for exact spot drilling in concrete and metal decking
• Integrated wear mark indicator signals when the bit no longer meets ANSI requirements
• German-made quality designed to fit all SDS-PLUS rotary hammers
• Meets ANSI B212.15 standards to ensure compatibility with common anchors