Whiteside 3770 Classical Flat Bottom Router Bit 7/64" Radius 3/4" Large Diameter 3/8" Cut Length 1/4" Shank 2 Flute
Whiteside 3770 Classical Flat Bottom Router Bit 7/64" Radius 3/4" Large Diameter 3/8" Cut Length 1/4" Shank 2 Flute is backordered and will ship as soon as it is back in stock.
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Low Price Guarantee
Low Price Guarantee
At Holbren we believe we have the best pricing and total cost on the internet but if you do find a price on an item we sell in new condition we will match it and still maintain our low to free shipping rates.
The competing reseller must be authorized by the manufacturer to sell their product, have it in stock, and the company name must be verified. Holbren will price match drop ship items if we have to drop ship as well and that would only be some models of Byrd heads. Authorized resellers do not include Ebay sellers or other online sales websites where the name may be different than the company name and unverifiable.
Price match guarantees are for the cost of the item and any applicable shipping a competitor may charge and include any sales, promotions or free shipping specials from competitors.
Send us an email to sales@holbren.com and we'll work it out.
30 Day Satisfaction Guarantee
30 Day Satisfaction Guarantee
If you are not completely satisfied with your purchase, we offer a 30 day satisfaction guarantee and the item can be returned for a full refund less shipping charges paid by the customer. The customer is responsible for all return shipping charges and credit will be applied when the item is received.
The only exclusion to this offer is items sold under the Byrd brand name, under most circumstances we must pass along a 25% restocking fee that we are charged.
If you wish to return an item, please email us at sales@holbren.com with the details.
Introducing the Whiteside 3770 Classic Flat Bottom Router Bit — a precision plunge bit engineered for clean, flat-bottom grooves and pockets. With a 7/64" radius, a large 3/4" diameter, and a 2" overall length, this bit is built to deliver consistent, professional results in both softwood and hardwood projects. The 1/4" shank fits standard routers for broad compatibility.
Designed as a classical flat bottom bit with two cutting flutes, the Whiteside 3770 combines fast material removal with a smooth finish. The double-flute configuration reduces chatter and leaves a ready-to-finish bottom surface, while the plunge capability and bearing guide on the shank provide precise start and follow-along-trace performance for templates and decorative joinery.
- Radius: 7/64" (flat bottom)
- Diameter: 3/4"
- Cut length: 3/8"
- Overall length: 2"
- Shank: 1/4"
- Flutes: 2-flute design (double flute)
- Special features: Bearing guide on shank for easy tracking
- Operation: Plunge-capable for precise depth control
Ideal applications include creating precise flat-bottom grooves, pockets, and patterns in cabinetry, furniture, and decorative woodwork. The Whiteside 3770 is a reliable choice for woodworkers who demand clean bottoms, repeatable results, and long edge life from a classical flat bottom router bit.
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Cutting length
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Large diameter
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Overall length
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Radius
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Shank
WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood.

Whiteside Machine
Whiteside Machine Company, founded in 1970 by Bill and Bobbie Whiteside in North Carolina, started as a machine shop providing custom parts for the furniture and woodworking industries. Today, it has grown into a leading manufacturer of woodworking tools and equipment, known for innovation and quality solutions.

