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 when drilling through rebar to reduce downtime
• Solid carbide heads deliver up to 5x longer life in concrete with rebar
• Variable flutes remove dust faster to reduce heat and increase holes per battery charge by up to 20%
• Engineered with rebar guards for maximum durability in hard aggregate
• 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 meets ANSI B212.15 to fit common anchors
• Compatible with all SDS-Plus rotary hammers