Product Description
CMT Profile Knives for Insert Shaper System - 1-37/64" x 5/32" (40x4mm), 2-Pack by CMT are precision-ground alloyed steel shaper knives designed for use with the CMT universal cutter head system. Sold as a matched pair, these 40x4mm profile knives deliver long-lasting performance for woodworking applications including molding, profiling, and decorative edge work on hardwood, softwood, MDF, and chipboard. Compatible with CMT insert shaper cutter heads, they give woodworkers a reliable, interchangeable tooling solution for producing consistent, clean profiles on spindle moulders and similar machines.
Key Features
- Alloyed steel construction - provides the hardness and durability needed for long-lasting performance through demanding production runs on hardwood, softwood, MDF, and chipboard.
- 40x4mm knife size (1-37/64" x 5/32") - a precise, standardized dimension that ensures secure, accurate seating in compatible CMT universal cutter heads for repeatable profile results.
- Sold as a matched pair (2 knives) - both knives are ground to the same profile, so the cutter head stays balanced during operation and produces a smooth, consistent surface finish.
- Part of the CMT Insert Shaper System - interchangeable with a full range of profile knives in the CMT lineup, giving operators the flexibility to switch profiles quickly without replacing the entire cutter head.
- Variety of profiles available in the system - users can build a complete shaping library by selecting individual knife pairs, reducing tooling costs while expanding creative and production possibilities.
Why This Product
- For shops running a CMT universal cutter head, these 40x4mm knives are a direct-fit, interchangeable solution - no additional adapters or modifications required, saving setup time between profiles.
- Alloyed steel construction means the knives hold their edge longer through repeated use on dense hardwoods and abrasive sheet materials like MDF and chipboard, reducing downtime for resharpening or replacement.
- Buying profile knives as individual pairs rather than complete cutter assemblies keeps tooling costs manageable, particularly for cabinet shops and millwork operations that need a broad range of molding profiles.
- Matched-pair design keeps the cutter head properly balanced, which translates directly to smoother surface quality on finished workpieces and reduced vibration during operation.
Specifications
- Manufacturer Part Number: 690.129
- Brand: CMT Orange Tools
- Cutting Height: 1-37/64"
- Maximum Thickness: 5/32"
- Knife Size: 40x4mm
- Material: Alloyed steel (SP)
- Quantity: 2 knives (1 pair)
- System Compatibility: CMT Insert Shaper System - universal cutter heads
Approved Applications
- Molding and profiling on spindle moulders and profile machines
- Cabinet door making and frame-and-panel work
- Decorative edge profiling on hardwood and softwood
- Shaping MDF and chipboard components for furniture and cabinetry
Frequently Asked Questions
What cutter heads are these profile knives compatible with?
These knives are designed for use with CMT universal cutter heads as part of the CMT Insert Shaper System. They accept 40x4mm profile knives, which is the standard size for this system. Always verify your specific cutter head model accepts 40x4mm knives before ordering.
How many knives are included in this listing?
This listing includes 1 pair - 2 individual profile knives - both ground to the same profile. Running a matched pair is required for proper cutter head balance and consistent profile output.
What materials can these profile knives be used on?
These alloyed steel knives are suitable for shaping hardwood, softwood, MDF, and chipboard. The alloyed steel construction supports long-lasting performance across this range of common woodworking and cabinetry materials.
Can these knives be used with other brands of insert shaper cutter heads?
These knives are part of the CMT Insert Shaper System and are specified for use with CMT universal cutter heads. Other insert shaper systems that accept 40x4mm profile knives may also be compatible, but it is important to confirm dimensional and mechanical compatibility with your specific cutter head before use.
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