CMT 839.992.11 Beading Bit with Bearing by CMT is a professional-grade router bit designed to cut a refined bead profile along wood edges, adding an elegant decorative detail to furniture, cabinetry, and millwork. The beading profile is similar to a roundover cut, but the smaller bearing creates a delicate inset at the base of the profile - giving woodworkers an extra decorative option that sets finished pieces apart. With a 2-1/2 in. cutting diameter, a 1 in. radius, and a 1/2 in. shank, this bit is well suited for use in handheld routers, router tables, and CNC routing machines working with solid hardwood, softwood, plywood, MDF, and similar materials.

Key Features

• Beading profile with inset detail - unlike a standard roundover, the smaller bearing produces a delicate inset at the base of the cut, adding a more refined decorative option to edge profiling work.
• Ball-bearing guide included - the integrated bearing guide rides along the workpiece to maintain consistent cutting depth pass after pass, reducing the need for repeated setup adjustments.
• 2-Flute (2-tooth) carbide cutting head - hardwood-grade carbide (HW) delivers a clean, smooth profile on solid hardwood, softwood, plywood, MDF, and composite materials.
• 1/2 in. shank - the larger shank diameter provides greater rigidity and reduces vibration during the cut, resulting in smoother edge profiles and improved bit stability.
• Right-hand rotation - standard RH rotation is compatible with the vast majority of handheld routers, router tables, and CNC routing setups.
• 2-1/2 in. cutting diameter with 1-5/16 in. cutting height - capable of producing a full 1 in. radius bead profile in a single pass on appropriately sized stock.
• 3-1/8 in. total length - designed for secure chuck engagement while maintaining proper clearance for a wide range of router table and handheld setups.

Why This Product

• The 1 in. radius beading profile offers a bolder decorative detail than smaller beading bits, making it an ideal choice for larger furniture components, wide cabinet rails, and substantial millwork profiles where a pronounced bead adds visual impact.
• The bearing-guided design eliminates the need for a fence when routing straight or curved edges, giving woodworkers greater flexibility when working with shaped or irregularly sized workpieces.
• The 2-flute hardwood-grade carbide construction handles demanding materials - including solid hardwood and MDF - while maintaining edge sharpness through extended production runs.
• A 1/2 in. shank provides the stability needed for a bit of this diameter, helping control vibration and chatter that can affect profile quality and surface finish on decorative edge work.

Specifications

• Manufacturer Part Number: 839.992.11
• Brand: CMT Orange Tools
• Diameter: 2-1/2 in.
• Cutting Height: 1-5/16 in.
• Total Length: 3-1/8 in.
• Radius: 1 in.
• Shank: 1/2 in.
• Number of Teeth: 2
• Material: HW (Hardwood-Grade Carbide)
• Rotation: Right-Hand (RH)

Approved Applications

• Creating decorative bead profiles on wood edges
• Furniture and cabinet edge detailing
• Decorative millwork and trim profiling
• Panel and door rail edge treatment