CMT Ovolo Sash Router Bit - Profile C, 1-7/64 in. Diameter x 3/4 in. Cutting Height, 25/64 in. Radius, 1/4 in. Shank is a precision-ground, bearing-guided moulding bit engineered for craftspeople who need clean, repeatable ovolo profiles in sash bar windows, divided light cabinet doors, and stile and rail door constructions. With a 25/64 in. radius and a 1/4 in. shank, this 2-tooth hardwood-rated carbide bit handles both straight and curved frame work, making it an ideal router bit for fine furniture, cabinetry joinery, and glazing bar applications alike.

Key Features

• Profile C Ovolo Sash Geometry - produces the classic rounded ovolo profile used in true divided light doors, sash windows, and stile and rail constructions, delivering consistent results across repeated passes without layout guesswork.
• Bearing-Guided Design - the bearing follower guides the bit along the workpiece edge, allowing curved frames and arched glazing bars to be moulded accurately without the need for a fence, expanding the range of shapes you can produce.
• HW (Hardwood-Grade) Carbide Cutting Tips - high-density carbide holds a sharp edge longer through hardwood and softwood alike, reducing resharpening frequency and keeping moulding profiles crisp over extended production runs.
• 2-Tooth Configuration - dual cutting edges balance the load on each pass, promoting a smooth surface finish on solid wood and reducing tear-out on the delicate ovolo shoulder.
• Right-Hand Rotation - standard RH rotation is compatible with virtually all handheld routers and router tables, making this bit a straightforward drop-in for existing setups.
• 1/4 in. Shank - fits the most common collet size on compact and mid-size routers, giving hobbyists and professionals flexible machine compatibility without adapters.
• Total Length of 2-13/32 in. - sufficient overall reach to clear router collets and allow full cutting height engagement at 3/4 in., even in thicker frame stock.

Why This Product

• If you need to mill authentic divided light door panels or sash bar window frames, the Profile C ovolo shape is specifically designed for that joinery - not a general-purpose roundover that requires improvisation.
• The bearing-guided construction means curved and arched frame members can be moulded with the same bit used for straight runs, eliminating the need for a separate curved-work setup or template jig.
• At a 25/64 in. radius and 3/4 in. cutting height, this bit produces a proportioned ovolo profile well suited to traditional furniture and cabinet door scales, where an oversized or undersized radius would look out of place.
• The 1/4 in. shank opens this bit to compact routers and trim routers commonly used for detail work and small-scale cabinet making, not just heavy floor-standing machines.

Specifications

• Manufacturer Part Number: 855.308.11F
• Brand: CMT Orange Tools
• Diameter: 1-7/64 in.
• Cutting Height: 3/4 in.
• Total Length: 2-13/32 in.
• Radius: 25/64 in.
• Shank: 1/4 in.
• Profile: C
• Number of Teeth: 2
• Material: HW (Hardwood-Grade Carbide)
• Rotation: Right-Hand (RH)

Approved Applications

• True divided light cabinet door making
• Sash bar window frame moulding
• Stile and rail door constructions
• Curved glazing bar and arched frame moulding
• Fine furniture joinery requiring an ovolo profile
• Cove-profile drawer handle forming (using cove configuration)