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Internet # 204073442

Model # DR34127

Top Rated

1/2 in. Rounding Over Bit

$55.97
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  • Use on hand-held and 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

Diablo's Rounding over Router Bits soften furniture edges and creates decorative beads. With interchangeable bearings to cut rabbets of different depths, 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.

Highlights

  • For beading work, equip bits with a 1/8 in. bearing and step washer
  • Cuts all composition materials, plywood's hardwoods and softwoods
  • Use on hand-held and table-mounted portable routers
  • Red router bits are a registered trademark of Freud America, Inc.
  • Return Policy

Product Information

Internet # 204073442

Model # DR34127

Additional Resources

Shop All DIABLO

Specifications

Dimensions: H 4.63 in, W 3.88 in, L 2.875 in

Dimensions

Cut Diameter (in.)

1.875 in

Product Height (in.)

4.63 in

Product Length (in.)

2.875 in

Product Width (in.)

3.88 in

Shank Diameter (inch)

1/2 inch

Details

Individual/Set

Individual

Number of Pieces

1

Returnable

90-Day

Router/planer type

Cabinet

Tools Product Type

Power Tool

Questions & Answers

What is the outside diameter of the bearing on the 1/8” radius bit?
ByOct 3, 2025
0 Answer | 
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Can this bit be used on porcelain?
ByJan 1, 2025
0 Answer | 
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This is described as a 1-7/8" radius rounding bit, but the photos show 5/8" radius. Please verify the actual radius of this bit.
ByFeb 6, 2024
1 Answer | 
Answer This Question

The cut radius of this router bit is 1.875 inches, or 1-7/8 inches.

By|Feb 4, 2025


I'm planning on pouring epoxy on my laminate countertops and the company recommends rounding off the edges to allow the epoxy to flow over the edges easier. Can I cut right through the laminate with this?
ByMay 3, 2021
4 Answers | 
Answer This Question

It sure will, Angie. Thanks for the terrific question!

By|May 20, 2021

    It could if you wanna pay too much money for a router bit.

    By|May 4, 2022

      Yes you can. Make sure the router is set to the correct speed and go at a consistent speed to prevent tear out or buring.

      By|Jun 21, 2022

        Depends upon what type of laminate your countertops are made of. Since it is a carbide bit it probably will work on most types.

        By|May 3, 2021


        can it used with a hand held router?
        ByAug 13, 2019
        2 Answers | 
        Answer This Question

        Hi Ozzy! The DR34128 can be used in a handheld router as long as the throat of the router base is large enough to accommodate the bit’s 2” diameter. Since this bit removes a large amount of material, always be sure to use multiple passes to reach the full profile.

        By|Sep 28, 2021

          Hello Ozzy, Thank you for your question. You can use this bit in a hand help router. You want to make sure that it will take a 1/2" shank and have a large enough motor to handle this bit. You might also want/need to make a couple passes to get a nice smooth corner.

          By|Nov 9, 2023

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          Viewing 1-5 of 5

          Customer Reviews

          4.7 out of 5

          • 4.7 out of 156 reviews
          • 94% recommend this product
          Filter by:
          Showing 1-10 of 156 reviews
          I bought this to round the edges of some 6065 1/4" aluminum plate. It performed flawlessly!
          by
          • Verified Purchase
          Needed this to finish off a table I was building as a gift for my wife for Christmas. I was faced...
          Needed this to finish off a table I was building as a gift for my wife for Christmas. I was faced with rounding by hand when I found this bit at Home Depot. It did the job I needed. It produced a smooth clean cut.
          by
          • Verified Purchase
          • Recommended
          1 found this review helpful
          This bit is very sharp... holds it edge. 2 Thumbs up!
          This bit is very sharp... holds it edge. 2 Thumbs up!
          by
          • Verified Purchase
          • Recommended
          I picked up this rounding bit to finish my new table that I built for my wife. The bit cut throu...
          I picked up this rounding bit to finish my new table that I built for my wife. The bit cut through oak like butter and made a perfectly round edge. I am impressed at how well the bit worked and will certainly be using Diablo bits for the future.
          by
            • Recommended
            2 found this review helpful
            Worked as I would have expected. I was easing the edges of a butcherblock and it was as I wanted...
            Worked as I would have expected. I was easing the edges of a butcherblock and it was as I wanted. It did not burn the wood or gouge the edge.
            by
            • Verified Purchase
            • Recommended
            Cuts exactly as you'd hope a carbide router bit would! The bearing rolls smoothly, and the cut is...
            Cuts exactly as you'd hope a carbide router bit would! The bearing rolls smoothly, and the cut is accurate. The best thing about this bit is how well it matches the round-over on the Ikea drafting top I modified to fit my project!
            by
            • Verified Purchase
            • Recommended
            This a great router bit
            The router bit came sooner then I expected. It is just what I had needed and is to the quality that will last me thru my projects
            by
            • DIY
            • Verified Purchase
            • Recommended
            1 found this review helpful
            This customer chose to rate the product and not provide text.
            by
            • Verified Purchase
            Dulled quicker than I expect for carbide. After about 30 ft, started generating too much heat in the cut zone.
            by
            • Verified Purchase
            This customer chose to rate the product and not provide text.
            by
            • Verified Purchase
            Showing 1-10 of 156 reviews