SDS Plus 4CT MX4™ 5/8" X 6" X 8"

The Milwaukee SDS Plus 4CT MX4™ 5/8" x 6" x 8" Drill Bit is a high-performance masonry bit engineered for fast, long-lasting drilling in reinforced concrete, brick, and block.

Built with Milwaukee’s MX4™ 4-cutter carbide head, this bit delivers improved durability and speed when encountering rebar, reducing the risk of binding and extending overall bit life. The four-cutter geometry helps maintain a consistent round hole and improves stability compared to traditional 2-cutter designs.

Its breaker-point tip aggressively fractures material for faster penetration, while the optimized flute design efficiently removes dust and debris to reduce heat buildup and maintain drilling speed. A reinforced flute body helps minimize vibration and increases strength under high-impact rotary hammer use.

The 5/8" diameter is ideal for medium anchor and structural applications, while the 6" usable length (8" overall length) provides controlled drilling depth for standard concrete installations.

Key Features:

• MX4™ 4-cutter carbide head for maximum durability in rebar
• Breaker-point tip for faster drilling performance
• Reinforced flutes for reduced vibration and longer life
• Efficient debris removal for cooler, cleaner drilling
• SDS-Plus shank compatible with all SDS-Plus rotary hammers
• Optimized for reinforced concrete and masonry

Ideal Applications:

• Drilling anchor holes in concrete and block
• Working in reinforced concrete with embedded rebar
• Structural, mechanical, and electrical installations
• Commercial and residential construction projects