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Internet # 204073543

Model # DR50112

1 in. Top Bearing Flush Trim Bit

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  • Use on hand-held or table-mounted portable routers
  • Cuts all composition materials, plywood, hardwood & softwood
  • TiCo Hi-Density Carbide for flawless finishes and longer life
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Product Details

About This Product

The top mounted bearings on Diablo's Top Bearing Flush Trim Router Bits make them ideal for lettering and other template work where the work piece is being grooved or routed out. Featuring TiCo carbide with titanium, these bits provide a long cutting life and ultra-fine finish. Perma-shield, Diablo's high performance coating, reduces friction and build-up on the bits. The bits kick-back reducing design allows for safer, more controlled cuts. These bits are computer balanced for a smooth and accurate cut. All Diablo router bits feature exceptional quality, unmatched precision and maximum cutting life.


  • For template work and lettering
  • Cuts all composition materials, plywood's hardwoods and softwoods
  • Use on hand-held or table-mounted portable routers
  • Red router bits are a registered trademark of Freud America, Inc.
  • Cut depth = 1 in.
  • Cut diameter = 1 in.
  • Return Policy

Product Information

Internet # 204073543

Model # DR50112

Additional Resources



Dimensions: H 4.75 in, W 3.75 in, L 2.75 in


Cut Radius (in.)1 inProduct Height (in.)4.75 in
Product Length (in.)2.75 inProduct Width (in.)3.75 in
Shank Diameter (inch)1/2 inch


Individual/SetIndividualNumber of Flutes2
Number of Pieces1Returnable90-Day
Router/planer typeLaminateSelf-FeedingNo
Tools Product TypePower Tool

Questions & Answers

by|Jan 30, 2018
2 Answers
Answer This Question

A:  The shank size is 1/2".

by|May 5, 2023

    A:  Hi IRWINROMMEL, Thank you for your question. This 1" Top Bearing Flush Trim Bit has a 1/2" Shank.

    by|May 5, 2023
      Showing 1-1 of 1

      Customer Reviews

      3 out of 5
      • 3 out of 4 reviews
      • 0% recommend this product
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      Showing 1-4 of 4 reviews
      H D Photos not accurate with the product
      The picture on the app shows shank tige 1/4” and the actual router bits that you delivered is 1/2”. maybe the product is OK but I’m never gonna have a chance to use it.
      Response from DiabloProductExpertOct 5, 2023
      Hi! Thank you for bringing this to our attention. Your feedback helps us get better! We will be sending your feedback to the team! Please let us know what we can do to help improve your experience in the meantime: https://www.diablotools.com/contact
        This bit did the job and a lot more. It is heavy duty and easly removed all the hard wood needed on this project and left a smooth clean surfact. I would recommend this bit to every woodworker.
        • Verified Purchase
        The bit worked great for my application. I needed it...
        The bit worked great for my application. I needed it to dado out material for ladder treads. The bit did become less sharp after (15) 6inch passes through red oak at a 1/4in deep but that was to be expected and didn’t hinder getting the project completed. The bearing worked well with the jig I built. Also, the shaft was 1/2” so they need to update the photos.
        • Verified Purchase
        The bit worked ok, but you didn’t send the top...
        The bit worked ok, but you didn’t send the top bearing flush trim bit; the bit you sent had no bearing.
        Response from DiabloProductExpertJun 3, 2021
        Thank you very much for taking time to share such thoughtful commentary. Our team is here to help. Please give us a call and we’ll do our best to make this right: 800-334-4107. You can also email us if that’s preferred at customerservice@diablotools.com. We look forward to speaking with you!
        • Verified Purchase
        Showing 1-4 of 4 reviews