Product Description
CMT Router Bit for Domino Joining - 8mm RH is a precision-engineered spiral router bit built specifically for use with the Festool DF500 Domino joinery machine. Designed to rout accurate mortise slots in solid wood and wood composite panels, this 5/16 in. diameter bit delivers the clean, repeatable results that furniture makers, cabinetmakers, and millwork professionals depend on. With an extra-fine micrograin carbide spiral portion, a black P.T.F.E. non-stick coating, and right-hand rotation, this CMT bit is the dedicated replacement and spare tool for Domino loose-tenon joinery workflows.
Key Features
- Extra-fine micrograin carbide spiral portion - provides exceptional edge retention and cutting sharpness, resulting in smooth, splinter-free mortise walls in both solid hardwood and wood composites.
- Black P.T.F.E. coating on the spiral portion - reduces friction and prevents pitch, resin, and glue buildup during routing, so the bit runs cooler and stays cleaner between uses.
- Premium super-strength steel body - adds rigidity and resistance to deflection, maintaining precise slot geometry cut after cut even in dense hardwood species.
- 2 cutting edges (Z2) with 2 spiral flutes - balances cutting speed and chip evacuation efficiently, reducing heat buildup and keeping the slot profile accurate throughout the full 28mm cutting height.
- Right-hand (RH) rotation - matches the Festool DF500 spindle direction directly, ensuring proper engagement and safe operation without modification.
- M6x0.75mm thread shank - engineered to the exact interface specification of the Festool DF500, providing a secure, wobble-free mount for repeatable slot positioning.
- 49mm total length with 28mm cutting height - delivers deep mortise capacity suited to standard Domino loose-tenon joinery dimensions without exceeding the machine's depth range.
Why This Product
- Engineered as a direct-fit bit for the Festool DF500, this router bit uses the machine's native M6x0.75mm thread shank and right-hand rotation - eliminating the guesswork of adapter compatibility or rotation mismatch.
- The combination of micrograin carbide and P.T.F.E. spiral coating addresses two common problems in Domino slot routing: premature edge wear and resin buildup - both of which degrade slot quality and slow down production.
- With a 5/16 in. diameter and 28mm cutting height, this bit produces the mortise geometry needed for 8mm Domino loose tenons - the standard size used across furniture assembly, cabinet carcass joinery, and frame construction.
- The 2-flute spiral design balances material removal rate with chip clearance, making this bit well-suited for both solid wood and engineered wood composites such as MDF, chipboard, and plywood.
Specifications
- Manufacturer Part Number: 380.080.11
- Brand: CMT Orange Tools
- Diameter: 5/16 in.
- Cutting Height: 28mm
- Total Length: 49mm
- Shank: M6x0.75mm
- Number of Teeth: 2
- Number of Flutes: 2
- Rotation: Right-hand (RH)
- Material: HW (Hardmetal / Tungsten Carbide)
- For Machine: Festool DF500
- Product Type: Router Bit for Domino Joining
Approved Applications
- Mortise slot routing for Domino loose-tenon joinery
- Furniture assembly and frame joinery
- Cabinet carcass construction
- Joinery in solid hardwood and softwood
- Slot routing in wood composites including chipboard, MDF, and plywood
Frequently Asked Questions
Is this router bit compatible with the Festool DF700 as well as the DF500?
The source data specifies compatibility with the Festool DF500 only. The M6x0.75mm shank and right-hand rotation are matched to the DF500 interface. Verify your machine's shank and spindle specifications before use with any other Domino model.
What size Domino loose tenon does this bit produce slots for?
This bit has a 5/16 in. (approximately 8mm) diameter, making it the correct bit for routing slots that accept 8mm Domino loose tenons in the Festool DF500 system.
What does the P.T.F.E. coating on the spiral portion do?
The black P.T.F.E. coating reduces friction along the spiral flutes, which helps prevent pitch, resin, and glue from adhering to the bit during use. This keeps the cutting edges cleaner and helps maintain consistent slot quality over extended use.
What materials can this bit rout slots in?
This bit is designed to rout slots in solid wood and wood composites. Compatible material types include solid hardwood, softwood, chipboard, MDF, and plywood - covering the most common substrates used in furniture and cabinet joinery.
Reviews
FAQs
Standard Shipping is free on most orders over $50 within the contiguous US. If the order is under $50.00, the shipping is $9.99 set fee for shipping within the contiguous US.
Most of our products will ship within 1 to 3 Business Days. Some Special order products will ship within 2 to 5 Business Days. Preorders will be shipped to you on a first come first serve basis as soon as available from the manufacturer. Items that are "Made-to-Order" (Custom order products) will be shipped when fabrication is completed, shipping and delivery times will vary and depend on manufacturing.
Products that are shipped directly from the manufacturer will have processing and fulfilment times subject to manufacturer availability.
Preorders are shipped on a first come first serve basis as soon as available from the manufacturer, the sooner you place your Preorder the sooner your order will ship.
Freight shipping Policy:
Orders/Items too large or heavy may require special handling/Shipping and may require to be sent by truck. Someone must be present to accept truck deliveries. Standard truck delivery is to a dock facility designed to receive freight. You will be notified within 24 hours of ordering to confirm delivery. Lift gates for deliveries are available for an additional fee.
We offer Financing options through Clicklease
Please email your Return request to info@FactoryDirectSupplyOnline.com
Include the order number and the reason for your return.
All returns, regardless of their categorization, must include all original parts, be in their original packaging, and in the condition in which they were received. You may not qualify to receive a refund If the returned item is used, damaged, missing any parts, or is damaged during return shipping.
Checkout our complete Return policy
You can contact us through our contact page! We will be happy to assist you.