Milwaukee SDS MAX 4-Cutter Masonry Drill Bit, 1-1/2"X12"X17"

Milwaukee SDS MAX 4-Cutter Masonry Drill Bit, 1-1/2"X12"X17"

The Milwaukee 48-20-3986 MX4™ SDS MAX 4-Cutter Masonry Drill Bit (1-1/2" x 12" x 17") is a premium rotary hammer bit engineered for concrete with rebar and tough masonry, featuring a solid head carbide 4-cutter design that delivers up to 5X longer life in rebar-reinforced concrete. Built with rebar guards for added durability in hard aggregate and rebar, it also uses a sharp centering tip for accurate spot drilling and an integrated 4-cutter head to help prevent lock-up in rebar, reducing downtime. Optimized/variable flutes improve dust removal and reduce heat for up to 15% more holes per battery charge, and wear mark indicators show when the bit no longer meets ANSI requirements. It’s German made, meets ANSI B212.15 for common anchor fit, and fits all SDS-MAX rotary hammers.

Country of Origin
German Made

Key Features / Specifications

• Model / Part Number: 48-20-3986
• Brand / Series: Milwaukee MX4™
• Product Type: SDS MAX 4-cutter masonry drill bit (rotary hammer bit)
• Bit Diameter: 1-1/2"
• Usable Length: 12"
• Overall Length: 17"
• Head Design: Solid head carbide 4-cutter for up to 5X longer life in concrete with rebar
• Rebar Durability: Rebar guards for increased durability in hard aggregate and rebar
• Tip Design: Sharp centering tip for exact spot drilling in concrete and metal decking
• Anti Lock-Up: 4-cutter design helps prevent lock-up in rebar
• Flute Design: Variable/optimized flutes for faster dust removal and reduced heat (up to 15% more holes per battery charge)
• Wear Indicator: Wear mark indicators show end of life / when bit no longer meets ANSI requirement
• Standards: Meets ANSI B212.15 to fit common anchors
• Tool Compatibility: Fits all SDS-MAX rotary hammers
• Application: Ideal for concrete with rebar and masonry

Includes

• (1) SDS MAX 4CT MX4™ 1-1/2" x 12" x 17" bit (48-20-3986)

Ideal For

• Drilling anchor and through-holes in concrete with rebar
• High-demand masonry jobs where bit life and durability are critical
• Reducing downtime from rebar lock-up with a 4-cutter head design
• Cleaner, cooler drilling with faster dust evacuation via optimized flutes
• Crews needing ANSI-compliant anchor fit across common SDS-MAX rotary hammers