Product Description
CMT Bead and Bull Nose Bit - 1 1/8" Diameter, 1/4" Radius, 1/2" Shank by CMT delivers elegantly finished round and semi-round edge profiles in a single router table pass. Designed for stair treads, window sills, shelves, and furniture edges, this 2-flute carbide-tipped bit profiles solid hardwood, softwood, plywood, MDF, and a wide range of sheet goods with clean, precise results. The 1/4" radius and 1 1/8" cutting diameter make this bit a practical choice for craftsmen and woodworkers who need consistent bead and bull nose profiles on stock of varying thicknesses.
Key Features
- Hardwood (HW) Carbide Tips - industrial-grade carbide cutting edges hold their sharpness through demanding production runs, reducing downtime and sharpening frequency.
- 2-Flute Design - dual cutting edges deliver smoother surface finishes per pass and allow more balanced cutting forces, resulting in cleaner profiles on finished edges.
- 1/4" Radius Bead and Bull Nose Profile - cuts a full or semi-round bead profile in one pass, eliminating the need for multiple setups or secondary shaping operations.
- 1/2" Shank Diameter - the larger shank provides greater rigidity and reduces vibration during the cut, contributing to more accurate profiles and a safer routing experience.
- Right-Hand Rotation - compatible with standard router table spindles and collets, ensuring straightforward setup without special adapters or reversed feed directions.
- 1 1/8" Cutting Diameter with 1 1/64" Cutting Height - the generous cutting envelope handles typical shelf and sill stock thicknesses, while the secondary 33/64" cutting height dimension supports partial-depth bead profiles on thinner workpieces.
- Router Table and Fence Required Operation - fence-guided router table use keeps the workpiece firmly controlled throughout the cut, improving repeatability and reducing the risk of unexpected movement.
Why This Product
- A single-pass bead and bull nose profile bit eliminates multiple tool changes and repositioning steps - ideal for production runs on stair treads, window sills, and shelves where consistency and efficiency matter.
- The 1/2" shank diameter seats securely in router table collets, minimizing runout and vibration that can mar a finished edge profile on visible furniture or millwork surfaces.
- Using a cutter with a bead diameter wider than the stock thickness allows woodworkers to create a partial bull nose profile, expanding the range of edge treatments achievable with a single bit.
- Hardwood-grade carbide tips stand up to repeated passes through solid hardwood, plywood, and MDF, making this bit a durable long-term addition to a router table setup rather than a single-use consumable.
Specifications
- Manufacturer Part Number: 854.504.11
- Brand: CMT Orange Tools
- Diameter: 1 1/8"
- Cutting Height: 1 1/64"
- Secondary Cutting Height: 33/64"
- Total Length: 2 1/2"
- Radius: 1/4"
- Shank: 1/2"
- Number of Teeth: 2
- Material: Hardwood Carbide (HW)
- Rotation: Right-Hand (RH)
- Bit Type: Bead and Bull Nose
Approved Applications
- Bull nose edge profiles on stair treads
- Bead profiles on window sills
- Decorative edge finishing on shelves and furniture
- Full-round and semi-round bead profiles on solid hardwood and sheet goods
- Partial bull nose profiles on stock thinner than the bead diameter
Frequently Asked Questions
Can this bit be used freehand with a handheld router?
No. This bit is designed to be used only on router tables equipped with a fence. Freehand handheld use is not recommended for this profile bit. Always feed the workpiece against the fence and do not remove the workpiece while the bit is routing.
What shank size does this bit require, and will it fit my router table collet?
This bit uses a 1/2" shank diameter. Confirm that your router table's router motor accepts a 1/2" collet before mounting. Many full-size router tables use 1/2" collets as standard, but always verify your specific setup before use.
How do I achieve a partial bull nose profile rather than a full round edge?
To create a partial bull nose or decorative bead, use this cutter on stock that is thinner than the full bead diameter. The portion of the profile that extends beyond the workpiece thickness will not engage, leaving a clean partial round on the edge. CMT specifically notes that a cutter with a bead diameter wider than the stock thickness can be used for this effect.
What materials can this bit cut effectively?
The hardwood-grade carbide (HW) tips on this bit are suited for solid hardwood, softwood, plywood, MDF, and similar wood-based sheet goods commonly used in furniture, millwork, and cabinet applications.
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