Milwaukee SDS MAX 4-Cutter Masonry Drill Bit, 1-3/4"X18"X23"

Milwaukee SDS MAX 4-Cutter Masonry Drill Bit, 1-3/4"X18"X23"

The Milwaukee SDS MAX 4-Cutter Masonry Drill Bit (48-20-3992), 1-3/4" × 18" × 23" is built for high-performance drilling in tough concrete and masonry, especially where rebar and hard aggregate are common. With a solid head carbide design for extended life, rebar guards for added durability, and a sharp centering tip for accurate starts, it’s engineered to drill faster and more efficiently while meeting common anchoring standards.

Country of Origin: Varies by production batch

Key Features / Specifications

• Brand: Milwaukee
• Model / SKU: 48-20-3992
• Product Type: SDS-MAX 4-cutter masonry drill bit
• Shank Type: SDS-MAX
• Bit Diameter: 1-3/4"
• Working Length: 18"
• Overall Length: 23"
• Head Material: Solid head carbide for up to 5X longer life in concrete with rebar
• Rebar Protection: Rebar guards for increased durability in hard aggregate and rebar
• Tip Design: Sharp centering tip for exact spot drilling in concrete and metal decking
• Flute Design: Variable flutes for up to 15% more holes per battery charge
• End-of-Life: Wear mark indicators show end of life and when the bit no longer meets ANSI requirement
• Standards: Meets ANSI B212.15 to fit common anchors
• Made In: Germany
• Ideal Materials: Concrete with rebar and masonry
• Tool Compatibility: Fits all SDS-MAX rotary hammers

Ideal For

• Drilling large-diameter holes in concrete with rebar and tough masonry
• Anchor installations requiring compliance with ANSI B212.15 fitment
• Faster, straighter starts using the sharp centering tip
• High-wear applications where rebar guards and solid carbide head extend bit life
• Battery-powered SDS-MAX work where variable flutes help maximize holes per charge