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Coring Drill Bits

Internet #

204854271

Model #

48-20-5408

Store SKU #

1002314561

2 in. x 11-3/8 in. SDS-MAX Core Bit

(109)Questions & Answers (12)
$13410
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  • Asymmetrical carbide teeth ensure quicker drilling speeds
  • Designed for block, brick, and concrete applications
  • Centering tip minimizes bit walking and makes exact spot drilling
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Product Details

Milwaukee's one piece carbide tipped core bits are ideal for drilling large holes in brick, block, and concrete. The asymmetric tooth pitch with alternating tooth geometries for up to 20% faster drilling speeds. The one piece design maximizes energy transfer and the thick wall core body is durable in large hammers. The fluted core exterior minimizes friction loss and removes debris faster. Core bit cut with the outer cutting edge only. The inside core must be removed to allow for deeper hole drilling applications beyond 3". Centering bit 48-20-5495 (included) is recommended for exact spot drilling and to avoid bit wandering during use. The drift key 48-20-5497 (not included) allows for easy removal of the centering bit. The one piece core bits are available in SDS-Max or Spline shanks, ranging from 1-1/2" to 6" diameters and overall lengths of 11-3/8" or 22", with a drilling depth of 3".
  • Drift key (48-20-5497) sold separately for easy centering bit removal
  • Ideal for brick, block, and concrete applications
  • Centering tip to reduce bit walking and create exact spot drilling
  • Drilling depth of 3
  • Designed for SDS Max rotary hammers
  • Asymmetrical and Alternating Teeth for up to 20% faster drilling speeds
  • Thick-Wall Core Body for Durability Even in Large Hammers
  • Includes centering bit (48-20-5495) to allow exact spot drilling and reduce bit walking
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Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

12Questions
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Q:drilling into limestone in the ground to set Tee post will this bit work to drill hole into Limestone?
by|May 23, 2023
1 Answer
Answer This Question

A:  Yes, Mike

by|May 23, 2023
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Q:Will this drill through clay sewer pipe
by|Oct 13, 2022
1 Answer
Answer This Question

A:  Hi Chris- This bit is designed for block, brick, and concrete applications

by|Oct 26, 2022
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    Q:What holds the centering bit into the core bit?
    by|Dec 24, 2021
    3 Answers
    Answer This Question

    A:  Set screw

    by|Dec 24, 2021

      A:  The pilot bit is simply pressure-fitted in. My pilot fell out on the first go with the bit falling in a place I couldn't recover so I'm very annoyed at the design.

      by|Mar 15, 2023
        3 found this answer helpful

        A:  The arbor bit is tapered and just pressed into the middle of the core bit. There is not retaining pin on this. If you are coring hollow block I would start the hole then remove the arbor bit. A better option would be to buy the Bosch bit the HD sells. Bosch has a retaining pin to hold the arbor bit.

        by|Jan 3, 2023
          1 found this answer helpful
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          Q:Can I buy an additional pilot bit separately? How is the pilot bit secured into the core bit?
          by|Dec 23, 2021
          1 Answer
          Answer This Question

          A:  Sometimes they are removable with an allen wrench. Sometimes you just turn it is threaded. Each time you use it it will tighten a little bit more so it may be difficult to remove.

          by|Dec 27, 2021
            Showing 1-4 of 12
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            Customer Reviews

            4.3 out of 5
            (109)
            • 4.3
              out of 109 reviews
            • 74% recommend this product
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            Showing 1-10 of 109 reviews
            Sep 25, 2020
            Don't waste your money.
            Solid, well made and expensive. How it does the job is questionable. I suppose if you have to drill stucco or it must work. In my case it totally ruined my brick wall and dislodged bricks from the wall not being able to finish the hole. I used diamond core bits before with 100% success. Don't waste your money.
            by
            Response from Milwaukee ToolSep 25, 2020
            Hello, this is Elise with Milwaukee Tool. Mike, thank you for your review. We value hearing your input on why this product didn’t meet your expectations and how we can improve in the future. Please feel free to contact us directly at socialmedia@milwaukeetool.com - Thank You
              Jul 7, 2020
              This core bit went thru concrete very easy. I encountered some rebar on the way drilling. I did n...
              This core bit went thru concrete very easy. I encountered some rebar on the way drilling. I did not forced it thru the rebar but I noticed that i did some damage to the rebar and the drill bit did not suffer any damage. This core bit met and exceeded my expectations
              by
              • Verified Purchase
              • Recommended
              Aug 9, 2017
              Anyone that uses rotary hammers professionally knows that when it comes to bits, you want German-...
              Anyone that uses rotary hammers professionally knows that when it comes to bits, you want German-made, as this high-quality Milwaukee product is. As I do almost exclusively residential work, a rotary hammer is not a primary tool for me. When it comes to core bits, I prefer these one-piece units, for their ease of use. Unit comes fully assembled, ready to be put to work. The unit is 11-3/8" in length to the tips of the carbide cutters, and with a cutting depth of 3". Note - this bit is for use in SDS-Max units only (at least without an adapter). Rotary hammers can come with one of a variety of different chuck configurations, so be sure that SDS-Max-shanked bits are what yours utilizes. SDS-Plus shank looks extremely similar, but they are not interchangeable.
              by
              • Recommended
              May 5, 2023
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              • Verified Purchase
              Feb 1, 2023
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              Jan 26, 2023
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              Jan 25, 2023
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              Jan 18, 2023
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              • Verified Purchase
              Dec 29, 2022
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              • Verified Purchase
              Dec 22, 2022
              Worked great. Definitely got the job done and was very...
              Worked great. Definitely got the job done and was very quick. Especially since I got it last minute I was skeptical at first, but I took a chance and didn’t regret It.
              by
              • Verified Purchase
              1 found this review helpful
              Showing 1-10 of 109 reviews

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