Milwaukee SDS MX4™ 4-Cutter Masonry Drill Bit, 1/2"X4"X6"

Milwaukee SDS MX4™ 4-Cutter Masonry Drill Bit, 1/2"X4"X6"

The 48-20-7371 Milwaukee SDS MX4™ 4-Cutter Masonry Drill Bit is a high-performance, professional-grade bit built for drilling through concrete with rebar without slowing you down. Featuring a solid carbide head and advanced 4-cutter design, it delivers long life, smooth drilling, and reduced binding when hitting rebar. With a sharp centering tip for accuracy and variable flutes for faster dust removal, this bit helps you drill more holes with less effort—and fewer interruptions.

Country of Origin
Made in Germany

Key Features / Specifications

• Model / Part Number: 48-20-7371
• Brand / Series: Milwaukee SDS MX4™
• Size: 1/2" diameter x 4" usable length x 6" overall length
• Product Type: SDS-Plus masonry drill bit
• Head Design: Solid carbide head for up to 5X longer life in concrete with rebar
• Cutting Design: 4-cutter geometry prevents lock-up in rebar
• Durability Feature: Rebar guards for extended life in hard aggregate and reinforced concrete
• Tip Design: Sharp centering tip for precise spot drilling
• Flute Design: Variable flutes for faster dust removal and reduced heat buildup
• Efficiency: Delivers up to 20% more holes per battery charge
• Wear Indicator: End-of-life wear mark shows when bit no longer meets ANSI requirements
• Standards: Meets ANSI B212.15 for anchor compatibility
• Compatibility: Fits all SDS-Plus rotary hammers
• Application: Ideal for concrete with rebar and masonry

Ideal For

• Drilling into reinforced concrete without constant binding
• Professionals needing long-lasting performance in tough materials
• Jobs requiring accurate hole placement for anchors
• Anyone who prefers drilling through rebar instead of getting stuck halfway and rethinking life choices