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5/8 in. x 21 in. MX4 SDS-Max Carbide Bit

$5497
  • Solid head carbide for up to 5x life in concrete with rebar
  • Rebar guards for maximum durability in hard aggregate and rebar
  • Centering tip for exact spot drilling in concrete & metal decking
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Product Overview

4-cutter design prevents lock-up in rebar, reducing downtime

Milwaukee MX4 4-Cutter SDS MAX Rotary Hammer Drill Bits

4-cutter design prevents lock-up in rebar, reducing downtime

Ideal for concrete with rebar and masonry applications

MX4 4-Cutter SDS MAX Rotary Hammer Drill Bits

Ideal for concrete with rebar and masonry applications

Solid head carbide for up to 5x longer life in concrete with rebar

MX4 4-Cutter SDS MAX Rotary Hammer Drill Bits

Solid head carbide for up to 5x longer life in concrete with rebar

SDS MAX Rotary Hammers

For Use With

SDS MAX Rotary Hammers

Up to 5x Longer Life in Concrete with Rebar

Up to 5x Longer Life in Concrete with Rebar

Up to 5x Longer Life in Concrete with Rebar

For Up to 5x Longer Life in Concrete with Rebar

Solid Head Carbide

For Up to 5x Longer Life in Concrete with Rebar

German Made

German Made

German Made

For Use In Reinforced Concrete, Brick and Block

For Use In

For Use In Reinforced Concrete, Brick and Block

Drilling in Reinforced Concrete

Reinforced Concrete

Drilling in Reinforced Concrete

Drilling in Concrete

Concrete

Drilling in Concrete

Drilling in Brick

Brick

Drilling in Brick

Drilling in Block

Block

Drilling in Block

Variable Flutes For Up to 15% More Holes Per Battery Charge

Up to 15% More Holes Per Battery Charge

Variable Flutes For Up to 15% More Holes Per Battery Charge

The Milwaukee SDS-MAX 4-Cutter MX4 5/8 in. X 15-1/2 in. X 21 in. Drill Bits feature solid carbide heads that deliver up to 5x longer life in concrete with rebar. Engineered with rebar guards to provide maximum durability in hard aggregate and rebar. MX4 4-Cutter bits are designed with sharp centering tips for exact spot drilling in concrete. The integrated 4-cutter design prevents lock-up in rebar, reducing downtime. Variable flutes remove dust faster, reducing heat and delivering up to 15% more holes per battery charge. Wear mark indicator shows users the end of life when the bits no longer meet the ANSI requirement. The Milwaukee MX4 4-Cutter Drill Bits are ideal for concrete with rebar and masonry applications.
  • 4-cutter design prevents lock-up in rebar, reducing downtime
  • Variable flutes remove dust faster reducing heat & delivering up to 15% more holes per battery charge
  • German made
  • Meets ANSI B212.15 to fit common anchors
  • Wear mark indicator 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
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Info & Guides

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Specifications

Dimensions

Assembled Depth (in.)
.625 in
Assembled Height (in.)
21 in
Assembled Width (in.)
.625 in
Bit Diameter
5/8 in
Bit Length (in.)
21
Shank Diameter
45/64 in

Details

Bit Material
Carbide
Drill Bit Type
4-Cutter
Drill Bit Type(s) Included
Hammer Drill Bit,Masonry Bit,Percussion Bit
Individual/Set
Individual
Material Application
Brick,Concrete
Returnable
90-Day
Self-Feeding
No
Shank Style
SDS Max
Tools Product Type
Power Tool

Questions & Answers

Typical questions asked about products:

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  • What are the dimensions of the product?

Customer Reviews

  • 4.8
    out of 105 reviews
  • 100% recommend this product
Filter by:
Showing 1-10 of 105 reviews
I was a bit hesitant to buy Milwaukee brand but...
I was a bit hesitant to buy Milwaukee brand but since it was the only brand available at the store that day that had the diameter size I needed. I used this drill bit in recently poured concrete post, to install a retrofit bolt anchor. Worked well and made easy work of drilling on the concrete.
by frank
  • Verified Purchase
Fast Cutting
This is a well made (in Germany) concrete bit (suitable for rebar contact) for use with SDS-MAX hammer drills. It is advertised as a 4 cutter bit, two full width and two partial (see photo). The "variable flute" design (which is deeper than other bits I have used) results in faster and more complete evacuation of drilling "dust" from the hole being drilled, with less frequent need to pull the drill out of the hole to clean the hole. The carbide protrusions on the side (for encounters with rebar) are longer in length and do not stick out as far as other bits, increasing their resistance to damage. I did not get a chance yet to see how it performs with rebar present, but in an unreinforced 4 inch concrete slab, it drilled through like it was butter. All four of the cutting surfaces communicate with the flutes, for material removal, not just the primary full width cutters. The manufacturer claims 20% faster drilling than others, and, based on the reduced frequency of stopping to remove the drilling residue alone, I have no reason to doubt it.
by DK
  • Recommended Product
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
    Unfortunately it did not have a 1/2" shaft to fit...
    Unfortunately it did not have a 1/2" shaft to fit my 1/2" drill opening so I have to return it. Sorry.
    by Bob B
      by Mr Fixit
        I have used this drill bit to cut through hard...
        I have used this drill bit to cut through hard granite rocks. I’ve probably drilled over 50 linear feet and it is still going strong.
        by SEAN
          by HomeDepotCustomer
            Rating provided by a verified purchaser...
            Rating provided by a verified purchaser
            by HomeDepotCustomer
            • Verified Purchase
            by HomeDepotCustomer
            • Verified Purchase
            Drill bit broke after 30 minutes of drilling. Have...
            Drill bit broke after 30 minutes of drilling. Have no problem with Hilti bits.
            by
            Response from Milwaukee ToolJul 19, 2021
            Hello, this is Sarah with Milwaukee Tool, thank you for your review. I am sorry to hear about your frustrations with your Milwaukee 5/8 in. x 13 in. SDS-Max Carbide Bit. We'd value the opportunity to learn more about your frustrations with your Milwaukee Tool, and to provide you with support. Please feel free to contact us directly at socialmedia@milwaukeetool.com. It will be our pleasure to provide support once we have received your correspondence. Thank You
            • Verified Purchase
            Showing 1-10 of 105 reviews