CMT Bead and Bull Nose Router Bit - 1 in. Diameter, 7/8 in. Cutting Height, 3/16 in. Radius, 1/2 in. Shank by CMT is a professional-grade carbide-tipped profiling bit designed to shape elegant full-round and semi-round bead profiles on wood edges in a single pass. Whether you are finishing stair treads, window sills, shelves, or furniture edges, this right-hand rotation bit delivers clean, consistent results on a wide range of solid wood and engineered wood materials. The 1/2 in. shank provides secure seating in the router collet, while the 2-flute cutting geometry ensures smooth stock removal and refined surface quality on each profile cut.

Key Features

• Hardmetal (HW) Carbide Cutting Material - industrial-grade carbide maintains a sharp edge through extended runs on hardwood, softwood, and engineered sheet goods, reducing downtime from premature dulling.
• 2-Flute Cutting Geometry - two cutting edges balance feed rate and finish quality, producing a smoother bead profile with less tear-out compared to single-flute configurations.
• 3/16 in. Radius Profile - creates a classically proportioned bead shape suited to stair tread noses, shelf edges, window sills, and decorative trim in a single router pass.
• 1 in. Cutting Diameter with 7/8 in. Cutting Height - the generous cutting envelope shapes the full bead-and-bull nose profile in one pass, saving setup time and eliminating the need for multiple light cuts to achieve the finished edge.
• 1/2 in. Shank - the larger shank diameter reduces vibration and deflection during routing, contributing to a more accurate profile and a longer tool life.
• Right-Hand (RH) Rotation - matches the standard rotation of virtually all fixed-base and plunge routers and router tables, so the bit seats and performs correctly without any special setup.
• 2-3/8 in. Total Length - compact overall length keeps the bit balanced and reduces runout when mounted in the router collet, supporting cleaner edge profiles.

Why This Product

• Single-pass bead and bull nose profiling - the 3/16 in. radius geometry shapes both the bead and the rounded nose in one router table pass, cutting finishing time on stair treads, window sills, and shelves without requiring multiple bit changes or setups.
• Versatile decorative edge application - for added design flexibility, using a bead diameter wider than the stock thickness produces a distinct decorative effect, expanding the range of finished looks achievable with one bit.
• Router table optimized design - this bit is engineered specifically for router table use with a fence, providing the controlled feed environment needed for safe, repeatable bead and bull nose profiles on furniture components and architectural millwork.
• Hardmetal carbide construction for long service life - HW carbide resists wear across hardwood and softwood species as well as common engineered materials, meaning fewer bit replacements and consistent profile quality over the life of the tool.

Specifications

• Manufacturer Part Number: 854.503.11
• Brand: CMT Orange Tools
• Diameter: 1 in.
• Cutting Height: 7/8 in.
• Cutting Height (Inner): 3/8 in.
• Total Length: 2-3/8 in.
• Radius: 3/16 in.
• Shank: 1/2 in.
• Number of Teeth: 2
• Cutting Material: HW (Hardmetal Carbide)
• Rotation: Right-Hand (RH)

Approved Applications

• Bead and bull nose edge profiles on stair treads
• Decorative edge shaping on window sills
• Profile routing on shelves and furniture edges
• Full-round and semi-round bead profiles on solid hardwood and softwood
• Decorative bead profiles where bit diameter exceeds stock thickness