Milwaukee SDS MAX 4-Cutter Masonry Drill Bit, 1-1/8"X12"X17"

Milwaukee SDS MAX 4-Cutter Masonry Drill Bit, 1-1/8"X12"X17"

The 48-20-3964 Milwaukee SDS MAX 4-Cutter Masonry Drill Bit is a heavy-duty rotary hammer bit built for fast, accurate drilling in concrete and masonry—especially concrete with rebar. Its solid head carbide and 4-cutter design help prevent lock-up in rebar, while optimized flutes clear dust quickly to reduce heat and support longer runtime on cordless tools. It also includes wear mark indicators to show end-of-life and maintain ANSI anchor-hole compliance.

Country of Origin
Made in Germany

Key Features / Specifications

• Model / Part Number: 48-20-3964
• Brand: Milwaukee
• Product Type: SDS-MAX 4-cutter masonry drill bit
• Size: 1-1/8 in diameter
• Overall Length: 17 in
• Usable / Drilling Length: 12 in
• Shank Type: SDS-MAX (fits all SDS-MAX rotary hammers)
• Tip / Head: Solid head carbide for up to 5x longer life in concrete with rebar
• Design: 4-cutter head to help prevent lock-up in rebar and reduce downtime
• Durability Features: Rebar guards for maximum durability in hard aggregate and rebar
• Accuracy: Sharp centering tip for exact spot drilling in concrete and metal decking
• Dust Removal: Optimized flutes remove dust faster to reduce heat and deliver up to 15% more holes per battery charge
• Standards / Compatibility: Meets ANSI B212.15 to fit common anchors
• Wear Indicators: Wear Mark Indicators show end of life and when the bit no longer meets the ANSI requirement
• Application Focus: Ideal for concrete with rebar and masonry

Ideal For

• Drilling anchor holes that need ANSI B212.15 compliance
• Concrete work involving rebar where avoiding bit lock-up is critical
• High-production drilling where fast dust evacuation reduces heat and improves efficiency
• Accurate starts in concrete and metal decking using the centering tip
• Users running SDS-MAX rotary hammers in demanding masonry applications