SKU: 88358947652

Freud 20-320 3/4 Inch Radius V Groove Router Bit 3/8 Inch Radius 1/4 Inch Shank CNC Decorative Carving Signmaking Fluting Perma-SHIELD

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Description

Freud 20-320 3/4 Inch Radius V Groove Router Bit 3/8 Inch Radius 1/4 Inch Shank CNC Decorative Carving Signmaking Fluting Perma-SHIELDAdd Elegant Detail and Fluting with Freud's Precision 3 8 Inch Radius V Groove Bit Transform ordinary woodworking projects into decorative masterpieces with the Freud 20 320 3 4 Inch Diameter Radius V Groove Router Bit. This versatile tool is designed to cut smooth, rounded grooves that are perfect for creating intricate rosettes, fluted columns, and decorative veins in cabinet doors and millwork. Unlike standard V groove bits that leave a sharp

Add Elegant Detail and Fluting with Freud's Precision 3/8-Inch Radius V-Groove Bit

Transform ordinary woodworking projects into decorative masterpieces with the Freud 20-320 3/4-Inch Diameter Radius V-Groove Router Bit. This versatile tool is designed to cut smooth, rounded grooves that are perfect for creating intricate rosettes, fluted columns, and decorative veins in cabinet doors and millwork. Unlike standard V-groove bits that leave a sharp bottom, the 3/8-inch radius on this bit produces a soft, curved profile, adding a sophisticated touch to signs, spheres, and exposed joinery. It performs exceptionally well across a wide range of materials, including hardwood, softwood, plywood, composites, and plastics.

Engineered for professional durability, the 20-320 features Freud's exclusive TiCo Hi-Density Carbide, which ensures a razor-sharp edge that stays sharper longer than standard bits. The bit is fully encased in Freud's signature Red Perma-SHIELD® Non-Stick Coating, a high-performance thermal barrier that prevents heat buildup, rust, and pitch accumulation—critical factors when routing deep decorative grooves. With a standard 1/4-inch shank, this bit provides stable, chatter-free operation in CNC machines, as well as hand-held and table-mounted routers, delivering a flawless finish every time.

Key Features

  • Radius Profile: 3/8-inch radius creates smooth round-over grooves, spheres, and rosettes.
  • Perma-SHIELD® Coating: Non-stick red coating resists heat, rust, and pitch buildup.
  • TiCo Hi-Density Carbide: Specially formulated carbide maximizes cutting life and finish quality.
  • Versatile Material Compatibility: Cuts cleanly through plywood, hardwoods, softwoods, plastics, and composites.
  • Multi-Machine Use: Designed for use on CNC, hand-held, and table-mounted routers.
  • Decorative Applications: Ideal for sign making, fluting, and architectural millwork.
  • 1/4-Inch Shank: Compatible with most trim routers and standard 1/4-inch collets.

What's Included:

  • (1) 3/4" Dia. Radius V-Groove Router Bit with 1/4" Shank (20-320)

Specifications

Manufacturer Freud
Part Number 20-320
Bit Type Radius V-Groove
Overall Diameter (D) 3/4 Inch
Radius (R) 3/8 Inch
Shank Diameter (A) 1/4 Inch
Carbide Height (h) 5/8 Inch
Overall Length (H) 2 Inches
Number of Cutters 2
Coating Perma-SHIELD® Non-Stick
Pro-Tip: This bit is excellent for creating fluted pilasters or columns. To get the best finish without burning the wood, especially at the "bottom" of the radius where cutter speed is slowest, make the cut in multiple shallow passes rather than one deep plunge. This allows the chips to clear and keeps the carbide cool.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 88358947652

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4.4 ★★★★★
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Verified Purchase
Sarah Akin
Omaha, US
★★★★★ 5
Keeps my coffee as hot as I want it to be
Color: Silver
This coffee warmer is much better than the candle warmer that I was using for my coffee before. With a range of 3 temperatures, I have a choice of temperatures from hot to very, very hot, and the warmer shuts itself off after a while, just in case I forget. The description advises that ceramic cups do not retain heat as well as flat-bottomed cups, but I have not found that to be a problem. Coffee in my ceramic mug stays as hot as I want it to be. The knob on the side makes this warmer easy to turn on and to select a temperature, plus I feel that it is a good value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
C
Verified Purchase
Cecilia Tosh
Carnegie, US
★★★★★ 5
Perfect Mug Warmer
Color: Black
I bought this to replace one I'd had for more than 25 years & I'm glad I got this one. Keeps my hot drinks hot for hours & will shut off after that. Quickly heats back up when needed. Very sleek looking. Easy to set up. Just take it out of the box & plug it in.
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Reviewed in the United States on February 12, 2026
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 5
I love it for my workspace! Hot tea all day
Color: Wood Grain
I love this item. The size is perfect, as I prefer something less bulky for my work desktop. It isn't as fancy as others that has the digital display screen, which is fine by me, because I don't necessarily need that. The knob and different colors that indicate the temperature range works fine. The temperature on this thing works fantastically well for me. Using it on the lowest setting keeps my drink nice and hot in a cold office. I use a heatproof glass teapot with this and its a good fit. It keeps my tea hot throughout the day, so I am able to pour smaller amounts of drink and take my time sipping it throughout the day without worrying that it will get cold. At point I almost forgot that it has an automatic shut-off safety feature when I noticed it was off. So that is a good feature to have. I highly recommend this.
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Reviewed in the United States on January 15, 2026
M
Verified Purchase
MB
Fort Morgan, US
★★★★★ 4
Requires a very specific mug to be useful.
Color: Black
The hotplate itself gets hot enough on its highest setting where it would burn your finger if you left it one there for more then a couple seconds. However when it come to what mug you can use to transfer that heat to your drink, this WILL NOT work with just any old ceramic, metal or glass mugs. You absolutely need to have a perfectly flat bottom on it. If the center of the bottom of the mug does not make direct contact with the very center of the warmer, it will not transfer heat. So straight way plan of spending another $15 to $20. Amazon has some available with good reviews all be it not a very big selection. I'm giving this 4 stars because the description needs to be very clear about this and its not.
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Reviewed in the United States on May 8, 2026
K
Verified Purchase
Kevin Finn
Cuba, US
★★★★★ 5
Great mug warmer with temp control
Color: Black
I replaced a cheap mug warmer with a couple of these for the house, and for almost the same price this is a lot more functional. I really like the temperature control and silicone surface protector. In combination with the carafe below, this has changed my life - no more microwaving coffee all morning. https://www.amazon.com/GiNT-Stainless-Thermal-Thermos-Retention/dp/B07MW5N7MS
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Reviewed in the United States on May 10, 2026

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