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Customer Reviews for Milwaukee 3/4 in. x 10 in. 4-Cutter SDS-PLUS Carbide Drill Bit

Internet #300879136

Model #48-20-8312

Store SKU #1002314577

  • 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 111 reviews
  • 77% recommend this product
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Showing 1-30 of 111 reviews
Carbide tip sheared off.
Drilled five holes in concrete and had the tip shear off on the sixth one. There was a tie wire near the last hole, but I didn’t think anything of it since it was rated for concrete with rebar. Took it back to HomeDepot but it was past the 90 day return policy by about three weeks. Talked to the Milwaukee rep at Homedepot and she wasn’t able to be much help. Maybe I just got a bad bit, but definitely hasn’t even come close to some of the other brands of bits that I have for my drill. Waste of time and money!
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Response from Milwaukee ToolSep 23, 2021
We are sorry to hear about your experience with this Carbide bit. We would love to learn more about what happened. Please email us at socialmedia@milwaukeetool.com. -Cayla with Milwaukee Tool
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    This drill bit worked great with little to no downward pressure. I used a battery powered hammer drill and was able to drill four holes 6 inch deep in less than 5 minutes.
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    Not Great on Rebar
    If you're drilling anchor bolts in a particular location and hit a rebar this isn't the bit you're hoping for. After my 2 fluted masonry bit gave up I ran to the store and picked up this 4 fluted bit to try to finish the 3 anchor holes that had rebar blocking about 1/2 way down. Got through just one after about 10 or 15 minutes. Researched other bits online then back to the store. Got the hollow one that looks like a core drill. It cleared the other 2 holes in about 30 seconds each.
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      The tip come off on the second hole I was drilling
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      Response from Milwaukee ToolDec 28, 2023
      Thank you for taking the time to leave a review, and we are sorry to hear about your experience with your Drill bit on the second use. We want to get you connected to our product team. Could you send our team an email at Social.media@milwaukeetool.com? Thank you - Milwaukee Tool, Social Team
      • Verified Purchase
      Drilled 10 holes in old hard concrete and bit worked very well.
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      • Verified Purchase
      Drill bit mushroomed at the tip after 2 mins of drilling. 2 60 seconds intervals Very poor drill bit was going to return next day but lost receipt First time I have ever had an issue
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      Response from Milwaukee ToolDec 13, 2023
      John, we are sorry to hear about your drill bit after minimal use. Our team would like to hear more about your experience. Could you send our team an email at Social.media@milwaukeetool.com with more details so we can assist? Thank you - Milwaukee Tool, Social Team
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      This thing kicks @$$ - cuts that took 4 minutes or more with a standard concrete bit, took less than 2 minutes with this guy, and the waste was easier to manage too!
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      Quality, I use them almost every day and they last
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      Really nice piece haven’t had to fight a rebar yet but this unit will do it as I had the 6” bit for a long time. I reposition my hole more often than drilling through but when I do this bit does the job. I do wish the 6” wasn’t out of stock though
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      Works great and has exceeded my expectations. I’ve used it a lot on large boulders and my foundation and still going strong.
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      Easily drilled through rusty steel and concrete will get other sizes
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        Worked well as needed.
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        Hit rebar twice using a new bit and it took more than 15 min of drilling to cut through the rebar on each hole. Not impressed
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        tip busted off after 4 holes
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        Showing 1-30 of 111 reviews

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