CMT 855.901.11 Moulding Bit by CMT is a 2-flute, right-hand rotation router bit designed for shaping decorative profiles, moulding details, and ornamental edges in wood and wood-composite materials. With a 15/16 in. cutting diameter and a generous 1-3/8 in. cutting height, this bearing-guided moulding bit delivers consistent, repeatable profiles in solid hardwood, softwood, MDF, and similar materials. The 1/2 in. shank provides a secure grip in mid-size to heavy-duty router setups, making this bit well suited for router table use where control and precision are paramount. The tungsten carbide (HW) cutting edges stay sharper longer through dense grain and composite panels, reducing the number of passes needed to achieve a clean finished profile.

Key Features

• Bearing-guided design - the integrated bearing follows the workpiece edge automatically, producing a consistent profile without the need for a template or fence, and reducing the risk of overcutting.
• 15/16 in. cutting diameter with 1-3/8 in. cutting height - covers a tall, sweeping profile in a single router table setup, reducing the number of bit changes required for complex moulding work.
• 1/2 in. shank - the larger shank diameter minimizes vibration and deflection during cutting, resulting in smoother surface quality and more predictable router performance compared to smaller shank sizes.
• HW (tungsten carbide) cutting material - industrial-grade carbide retains a sharp edge through extended cutting sessions in hardwood, softwood, MDF, and other demanding materials, extending the interval between resharpenings.
• 2-flute (2-tooth) configuration - dual cutting edges balance the load on each tooth, producing cleaner cuts and a more uniform finish on decorative moulding profiles.
• Right-hand (RH) rotation - compatible with the standard rotation direction of handheld routers and router tables, allowing straightforward installation without special setup.
• 3-19/64 in. total length - sufficient reach for deep-profile work on thick stock while still fitting securely in standard 1/2 in. collets.
• Recommended for router table use - large-diameter moulding bits like this one perform best on a router table equipped with a fence, giving the operator full control over feed direction, depth of cut, and workpiece support.

Why This Product

• For woodworkers shaping decorative moulding profiles on solid hardwood or MDF cabinet components, the bearing guide and 1-3/8 in. cutting height allow a full decorative profile to be produced in a controlled, multi-pass router table operation without the need for a separate template setup.
• The 1/2 in. shank is the correct choice for pairing with 1800W routers - the higher-power machines that CMT recommends for this class of large-diameter bit - delivering the torque and stability needed for smooth, chatter-free moulding cuts.
• The tungsten carbide (HW) cutting edges remain effective through demanding materials such as MDF and dense hardwoods, making this bit a practical long-term addition to a router table bit collection rather than a consumable that needs frequent replacement.
• The multi-pass approach supported by this bit - where the operator advances the depth incrementally across several passes - reduces tearout and burning, resulting in a finer surface that requires less sanding before finishing.

Specifications

• Manufacturer Part Number: 855.901.11
• Brand: CMT Orange Tools
• Diameter: 15/16 in.
• Cutting Height: 1-3/8 in.
• Total Length: 3-19/64 in.
• Shank: 1/2 in.
• Number of Teeth: 2
• Cutting Material: HW (Tungsten Carbide)
• Rotation: Right-hand (RH)
• Bit Type: Moulding Bit with Bearing

Approved Applications

• Decorative moulding profile routing on solid wood and wood composites
• Edge shaping on hardwood and softwood cabinet components
• Ornamental profile work on MDF and chipboard panels
• Multi-pass moulding operations on router tables equipped with a fence
• Profile routing on door frames and decorative trim pieces