Product Description
CMT Contractor Corner Bead Bit is a precision-ground router bit engineered for woodworkers who need clean, repeatable decorative profiles on furniture, cabinetry, and restoration projects. Designed to produce a distinctive corner bead profile in one or two passes, this bit delivers results that a standard bull nose bit simply cannot replicate - thanks to the smaller cutting diameter adjacent to the bearing that creates the characteristic bead shape. Whether you are working on antique reproduction pieces, period-accurate restoration work, or adding refined furniture details, this carbide-tipped bit handles solid hardwoods, softwoods, plywood, MDF, and similar sheet materials with consistent results.
Key Features
- Two Carbide-Tipped Cutting Edges - hardwearing carbide tips maintain a sharp edge through extended use on both solid wood and engineered sheet materials, reducing the need for frequent resharpening.
- Anti-Kickback Design - limits the maximum depth of each cut, reducing the risk of sudden kickback for improved safety and more controlled milling passes.
- Unique Corner Bead Geometry - the smaller cutting diameter adjacent to the bearing produces a true rounded corner bead profile that differs from a standard bull nose, giving you accurate antique and restoration-style decorative edges.
- Bottom Bearing Included - the ball-bearing pilot rides cleanly along the workpiece edge, guiding the cut accurately and consistently without additional setup hardware.
- Heat-Treated Shank and Body - the hardened 1/4 in. shank and body resist bending and wear under load, extending the service life of the bit and maintaining concentricity during operation.
- 1/4 in. Shank - fits a wide range of handheld routers and router tables equipped with a standard 1/4 in. collet, making this bit broadly compatible with common shop setups.
- Right-Hand Rotation - standard RH rotation is compatible with conventional router operation, requiring no special setup or reverse-rotation tooling.
Why This Product
- Unlike a bull nose bit, the corner bead geometry of this CMT bit allows woodworkers to mill a full-round corner bead in just two passes - or a rounded decorative edge in a single pass - saving time while achieving a profile that is otherwise difficult to replicate.
- The anti-kickback body design makes this bit a practical choice for woodworkers who run it freehand or on a router table, since the controlled depth-of-cut geometry reduces the sudden grab that can occur with traditional profiles on harder stock.
- With a compact 1/4 in. shank and a 1 in. cutting diameter, this bit is well-suited for detail work on furniture components, trim pieces, and restoration millwork where precision and profile accuracy matter more than bulk material removal.
- The included bottom bearing means the bit is ready to use straight out of the package with no additional pilot or guide accessories required, simplifying setup for both production runs and one-off custom pieces.
Specifications
- Manufacturer Part Number: 86102
- Brand: CMT Orange Tools
- Diameter: 1 in.
- Cutting Height: 11/16 in.
- Total Length: 2 5/16 in.
- Radius: 3/16 in.
- Shank: 1/4 in.
- Number of Cutting Edges: 2
- Cutting Edge Material: Carbide-Tipped (HW)
- Rotation: Right-Hand (RH)
Approved Applications
- Corner Bead Profiles on furniture and cabinetry edges
- Antique Reproduction Millwork
- Period Restoration Projects
- Decorative Furniture Details and trim work
What's Included
- 1x CMT Contractor Corner Bead Bit (1 in. diameter, 3/16 in. radius, 1/4 in. shank)
- 1x Bottom Bearing
Frequently Asked Questions
How is this corner bead bit different from a standard bull nose bit?
Although the two bits share a superficially similar appearance, this corner bead bit features a smaller cutting diameter adjacent to the bearing. That geometry produces a distinctly different profile - a true rounded corner bead rather than a simple bull nose edge. You can make one pass for a rounded decorative edge or two passes to mill a full-round corner bead profile.
How many passes are needed to cut a full corner bead profile?
According to the product data, you can achieve a rounded edge detail in a single pass. To mill a complete full-round corner bead, two passes are required - one on each face of the workpiece edge.
Is this bit compatible with a handheld router as well as a router table?
Yes. The 1/4 in. shank fits the standard 1/4 in. collets found on most handheld routers and router tables. The anti-kickback body design and included bottom bearing also make it practical for use on CNC routing machines where consistent profile depth and guidance are important.
What types of materials can this bit cut?
The two carbide-tipped cutting edges are well-suited for solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastic. The carbide tips maintain cutting performance across both natural wood and engineered sheet materials commonly used in furniture and cabinetry production.
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