Milwaukee 48-20-3991 SDS Max 4CT MX4 1-5/8" X 18" X 23"

The Milwaukee 48-20-3991 is a 1-5/8 in SDS Max hammer drill bit for concrete and reinforced concrete.

Features

• Solid head carbide delivers up to 5x longer life in concrete with rebar
• Rebar guards for increased durabilty in hard aggregate and rebar
• Sharp centering tip for exact spot drilling in concrete and metal decking
• Lock Up
• Variable flutes for up to 15% more holes per battery charge
• German Made
• Meets ANSI B212.15 to fit common anchors
• Wear Mark Indicators to show end of life and when bit no longer meets the ANSI requirement
• Ideal for concrete with rebar and masonry
• Fits all SDS Max rotary hammers

Common Questions

Will this fit my rotary hammer?

It has an SDS Max shank, so it fits SDS Max rotary hammers. It does not fit SDS Plus or Spline tools without an adapter.

Will the holes fit standard concrete anchors?

Milwaukee states it meets ANSI B212.15, the carbide-tip tolerance that sizes holes for common anchors. The wear mark shows when the bit no longer meets it.

How deep can it drill?

It drills up to 18 in deep in one pass (overall length 23 in).

Specifications

• Country of Origin: Germany
• MPN: 48-20-3991
• Certifications: ANSI B212.15
• Cutting Diameter: 1-5/8 in
• Shank Type: SDS Max
• Drilling Depth (in): 18.0
• Overall Length (in): 23.0
• For Use On: Concrete;Reinforced Concrete
• Cutting Material: Carbide Tipped
• Cutters: 4
• Product Role: Hammer Drill Bit