Engineered with solid carbide heads and rebar guards, these MX4 bits deliver up to 5x longer life in concrete with rebar. The advanced 4-cutter design prevents lock-up while variable flutes remove dust faster to increase battery efficiency by up to 20%.

• 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 and 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