Product Description
CMT 690.135 Profile Knives for Insert Shaper System are precision-ground, alloyed steel shaper knives designed to work with CMT universal cutter heads for molding, profiling, and edge shaping applications. Sold as a pair, these 40x4mm knives - measuring 1-37/64 inch cutting height by 5/32 inch maximum thickness - deliver long-lasting performance on a wide range of wood-based materials. Whether you are running a spindle moulder, moulder, or profile and edging machine, these insert shaper knives provide consistent, repeatable profiles for cabinet door making, frame and panel work, and decorative edge profiling.
Key Features
- Alloyed steel construction - provides durability and resistance to wear during extended shaping and profiling operations, reducing the frequency of replacement and downtime.
- 1-37/64 inch cutting height with 5/32 inch maximum thickness - precise knife geometry in KSS 40x4mm format ensures compatibility with insert shaper cutter heads and delivers accurate, consistent profile results on every pass.
- Designed for CMT universal cutter heads - the insert system format allows these knives to be swapped quickly between jobs, giving woodworkers the flexibility to switch profiles without purchasing an entirely new cutter head.
- Long-lasting performance - engineered for production-level use on hardwood, softwood, MDF, and chipboard so the knives hold their edge through demanding workloads.
- Sold as a pair (2 knives) - both matching knives are included so the cutter head is always properly balanced, which promotes smooth cutting action and a clean surface finish.
Why This Product
- The KSS 40x4mm format is part of a variety of profile knives available for the CMT universal cutter head system, meaning woodworkers can build a library of profiles around a single cutter head investment rather than buying dedicated heads for each molding pattern.
- Alloyed steel construction supports long-lasting performance across multiple material types - hardwood, softwood, MDF, and chipboard - making these knives a practical choice for shops that process a variety of substrates.
- Profile number 135 delivers a specific molding shape that is repeatable run after run, making it well suited for production cabinet door making, frame and panel assemblies, and decorative edge profiling where consistency across many pieces is essential.
- Selling the knives as a matched pair ensures balanced cuts from the outset, reducing setup time and helping operators achieve a smooth, professional surface finish without additional fitting or matching steps.
Specifications
- Manufacturer Part Number: 690.135
- Brand: CMT Orange Tools
- Cutting Height: 1-37/64 in.
- Maximum Thickness: 5/32 in.
- Knife Size: 40x4mm
- Material: SP (alloyed steel)
- Profile Number: 135
- Quantity: 2 knives (sold as a pair)
- System Compatibility: CMT Insert Shaper System - for use with CMT 692 series cutter heads
Approved Applications
- Molding and profiling on hardwood and softwood
- Cabinet door making
- Edge profiling on MDF and chipboard
- Frame and panel work
Frequently Asked Questions
What cutter heads are these knives compatible with?
These 40x4mm profile knives are designed for use with CMT 692 series cutter heads and other insert shaper systems that accept knives in the KSS 40x4mm format. The insert shaper design allows the knives to be changed quickly, so you can switch between different profiles using a single cutter head.
How many knives are included in the package?
The CMT 690.135 is sold as a pair, meaning 2 matching profile knives are included. Both knives are needed to properly load and balance the cutter head before use.
What materials can these shaper knives cut?
These alloyed steel profile knives are suitable for use on hardwood, softwood, MDF, and chipboard. The long-lasting performance characteristic of the alloyed steel construction makes them appropriate for both production runs and individual woodworking projects across these material types.
What machines can I use these profile knives with?
The CMT 690.135 knives are compatible with spindle moulders, moulders, and profile and edging machines that accept the CMT insert shaper system. Verify your machine accepts the KSS 40x4mm knife format and is used with a compatible CMT 692 series cutter head before mounting the knives.
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