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Customer Reviews for Milwaukee 1-1/8 in. x 18 in. 4-Cutter SDS-PLUS Carbide Drill Bit

Internet #300879153

Model #48-20-8356

Store SKU #1002314588

  • 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 spot drilling in concrete & metal decking

Customer Reviews

  • 4.5
    out of 989 reviews
  • 82% recommend this product
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Showing 1-30 of 989 reviews
Flatter than a pancake after 2 holes
I Drilled 2 holes and never made it through the second one. I was only drilling brick and didn’t even hit rebar. Definitely not up to the standards of quality I’ve come to expect from a Milwaukee product.
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Response from Milwaukee ToolJun 5, 2023
Thank you for taking the time to review your Carbide Drill Bit and we are sorry to hear about your experience. Could you send our team an email at Social.media@milwaukeetool.com, so we can assist? Thank you - Milwaukee Tool, Social Team
    Supposed to be good for concrete with rebar
    Bought two of these in case one fails. Good that I did buy two. My concrete has 6x6 steel wire mesh in it. My second hole I must have hit a rebar wire and it destroyed the bit. I have used the second bit to drill 8 more holes without issue.
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    • Verified Purchase
    1 found this review helpful
    Disappointed
    First 2 mx4 5/32 drill bits destroyed in minutes working in concrete with rebar. At least in this size arent durable. The 3rd mx 5/32 last longer to finish the job
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      Drilled 42 holes 10” deep in hard gneiss with little...
      Drilled 42 holes 10” deep in hard gneiss with little wear.
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      • Verified Purchase
      7/8" bit but 29/32" Hole.
      Installing my MaxJax in new concrete with Wej-it (toggler.com) Epoxy anchors, I drill 1 hole and discover the fitment is loose. I then measure the bit and find 2 tips measure 7/8", but the other 2 measure 29/32" (see pictures) As I was on a time crunch, I ground-down the 2 tips that were way out of spec and finished the job, albeit slowly. So, the bit CAN do the job, and I might have gotten a manufacturing defect unit, but it's a crappy thing to discover when you "have to get the job done now"
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        3/8" drill bit
        I bought this to drill holes in 6x6 landscaping timbers. I anchored the bottom timber into the ground with 1/2" by 2 ft rebar
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        • Verified Purchase
        • Recommended
        2 found this review helpful
        Bought to drill holes to install anchors for a MaxJax car lift.
        Drilled 10 holes with ease.
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        • Verified Purchase
        • Recommended
        1 found this review helpful
        Broke during 1st drill.
        Bit snapped after 1st usage. It would not drill in the concrete. HD did not have this size in different brand so I went to another store and purchased a Dewalt bit and it drilled the 16 holes within minutes. It might have been a fluke but after breaking this bit, losing $ 16.97 and a few hours of my time I would not recommend the Milwaukee drill bit.
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        Response from Milwaukee ToolJun 15, 2021
        Hello, this is Sarah with Milwaukee Tool. Hoodooyouknow, thank you for your review. I am sorry to hear about your frustrations with your Milwaukee 3/16 in. x 12 in. MX4 SDS-Plus 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
          1 found this review helpful
          This drill bit is a beast!
          This is the biggest SDS Plus bit they sell in store and it is a beast. I had to drill a hole through 4” concrete and this bit ate through the concrete within 20 seconds
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            • Recommended
            Purchased this to drill a 6” diameter sewer drain hole through a 6” thick foundation stem wall an...
            Purchased this to drill a 6” diameter sewer drain hole through a 6” thick foundation stem wall and it only took about 45 minutes !! Worked perfectly for the job it needed to accomplish
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            • Verified Purchase
            • Recommended
            Rating provided by a verified purchaser...
            Rating provided by a verified purchaser
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            Response from Milwaukee ToolJan 18, 2021
            We invite you to contact us at socialmedia@milwaukeetool.com so we may discuss your specific personal experience at Milwaukee Tool. Thank you. – Elise
            • Verified Purchase
            This bit ate right through my 10-day old concrete footings...
            This bit ate right through my 10-day old concrete footings without breaking a sweat. Drilled 9 holes @ 5/8” diameter about 5.5” deep and each hole took maybe 10 seconds. Didn’t encounter rebar so I can’t speak to how well the bit cuts thru steel, but for concrete, it was great. I don’t have the need for drilling 5/8” holes in concrete often, but you can’t go wrong with this bit.
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            • Verified Purchase
            Works great in my M18 Milwaukee Hammer drill
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            • Verified Purchase
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            • Verified Purchase
            The tips fell off all the bits. Returned them for a refund
            by
            Response from Milwaukee ToolFeb 15, 2024
            We appreciate you taking the time to leave a review on your drill bits, and we are sorry to hear about your experience. If you need further assistance, can you please reach out to us at social.media@milwaukeetool.com? Thank you - Milwaukee Tool Social Team
            • Verified Purchase
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            • Verified Purchase
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            • Verified Purchase
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            • Verified Purchase
            Easy to use, worked like a charm?? Thumbs up all around for me??
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            • Verified Purchase
            Awesome tip on this bit! Works great with my cordless!
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            • Verified Purchase
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            • Verified Purchase
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            • Verified Purchase
            Drills old concrete like butter
            I needed some holes for tap con screws, and the drillbit that tap con sells, would barely penetrate the concrete wall that I had . It would hang up on rocks or I don’t even know what was in there, but it was sitting on one spot for a long time over and over again . Drilled each hole with almost no effort, and no stopping.
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              • Recommended
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              • Verified Purchase
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              • Verified Purchase
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              • Verified Purchase
              Pounded through rebar as advertised.
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              • Verified Purchase
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              • Verified Purchase
              It was hard to tell until I put the new Bit in my Drill. The Shank is BENT!! When I started the Drill the Bit wiggling around. I had no choice but to use it. It shook my Head and Teeth to pieces drilling into the concrete Pavers. It was miserable trying to see what it was doing. I thought the Concrete Bolts may not work when I tightened them down, because of the way the Bit was cutting a larger hole wobbling around. I'm just happy the Concrete Bolts held! So, it's hard to tell just looking at the Drill Bit to know if it's bent. Just HOPE for the best is all I can tell everyone. Or maybe ask a Home Depot associate to check the Bit some way before you end up shaken to death as I was.
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              • Verified Purchase
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              • Verified Purchase
              Showing 1-30 of 989 reviews

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