Engineered with a 4-cutter design and rebar guards, these MX4 bits prevent lock-up and deliver up to 5x longer life in concrete with rebar. Variable flutes optimize dust removal to reduce heat, delivering up to 20% more holes per battery charge.

• 4-Cutter design prevents lock-up in rebar to reduce downtime
• Variable flutes remove dust faster to reduce heat and deliver up to 20% more holes per battery charge
• 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 concrete and metal decking
• Wear mark indicator signals when the bit no longer meets ANSI requirements
• German made and meets ANSI B212.15 to fit common anchors
• Compatible with all SDS-Plus rotary hammers