Product Description
CMT Ovolo Sash Router Bit Set by CMT is a precision-ground, bearing-guided bit set engineered for craftsmen who need clean, repeatable profiles on divided light cabinet doors, sash bar windows, and rail-and-stile frame constructions. With a 1/4 in. cutting radius, 1 1/4 in. cutting diameter, and a 1/2 in. shank, this two-flute hardwood-rated set handles everything from curved window frame molding to easy-to-pull cove drawer handle profiles - all in a single versatile package suited for handheld routers, router tables, and CNC routing machines.
Key Features
- Ovolo sash profile geometry - enables true divided light door construction for fine furniture, cabinets, sash bar windows, and rail-and-stile assemblies, giving woodworkers a single set capable of multiple period-accurate joinery profiles.
- Bearing-guided design - allows curved frames to be molded accurately without the need for a fence, expanding creative possibilities for arched doors and shaped sash components.
- Cove bit functionality included - produces smooth, easy-to-pull drawer handles as part of the same set, reducing the number of separate bits needed in the shop.
- HW (hardwood-rated) carbide material - delivers long-lasting cutting life through dense hardwoods, softwoods, and sheet goods without rapid edge degradation.
- 2-flute (2-tooth) configuration - balances feed rate and surface finish, producing clean, chip-free profiles that minimize sanding time on finished door and window components.
- Right-hand rotation - matches the standard spindle direction of virtually all handheld routers and router table setups, ensuring safe, predictable operation right out of the box.
- 1/2 in. shank - provides maximum rigidity and vibration damping compared to smaller shanks, resulting in smoother cuts and reduced chatter on long profile passes.
Why This Product
- For woodworkers building traditional divided light doors or period-style sash windows, the ovolo profile geometry is the correct choice - this set delivers that specific molding shape with a bearing guide that follows curved as well as straight work.
- The cove bit capability included in this set means a single purchase covers both the frame molding and the drawer handle profile, reducing tooling costs and bit-change time during a cabinet build.
- The 1/2 in. shank and hardwood-rated carbide construction make this set appropriate for demanding production passes in solid hardwood and composite sheet materials alike, not just light-duty softwood work.
- With a 1/4 in. radius and 15/32 in. cutting height, the geometry is sized specifically for standard sash and cabinet door stock thicknesses, helping ensure a properly proportioned profile without custom setup.
Specifications
- Manufacturer Part Number: 855.802.11
- Brand: CMT Orange Tools
- Diameter: 1 1/4 in.
- Small Diameter: 30mm
- Cutting Height: 15/32 in.
- Total Length: 2 13/32 in.
- Radius: 1/4 in.
- Shank: 1/2 in.
- Number of Teeth: 2
- Material: HW
- Rotation: Right-hand (RH)
Approved Applications
- Divided light cabinet door making
- Sash bar window frame routing
- Rail and stile frame construction
- Curved frame molding (bearing-guided)
- Cove-profile drawer handle production
Frequently Asked Questions
Can this ovolo sash set be used to rout curved door and window frames?
Yes. The glazing bar ovolo bits in this set are bearing-guided, which means the pilot bearing follows the workpiece edge and allows curved frames to be molded just as accurately as straight ones - no fence required for the curved routing operation.
What shank size does this set use, and does it fit standard router tables?
This set uses a 1/2 in. shank, which is the most common collet size on mid-range and professional router tables and handheld routers. The right-hand rotation matches standard router spindle direction, so no special setup is needed.
What is the cutting height and radius of the ovolo profile?
The cutting height is 15/32 in. and the ovolo radius is 1/4 in. These dimensions are sized for standard sash and cabinet door stock, producing a correctly proportioned ovolo profile without requiring custom bit-height adjustments beyond normal router table setup.
Can the bits in this set be used for drawer handle profiles as well as door frames?
Yes. The cove bits included in this set can be used to produce easy-to-pull drawer handles, making the set useful beyond door and window frame routing for general cabinet interior work as well.
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