Product Description
CMT 690.131 Profile Knives for Insert Shaper System are a matched pair of alloyed steel shaper knives sized 1-37/64 in. x 5/32 in. (40x4mm), designed for use with CMT universal cutter heads in the Insert Shaper System. These profile knives deliver long-lasting performance in molding, profiling, and edge work on a wide range of wood-based materials, giving woodworkers a reliable, precision-ground cutting solution for spindle moulders, moulders, and profile and edging machines. Sold as a pair of 2 knives.
Key Features
- Pair of matched profile knives (KSS 40x4mm) - both knives are supplied together so you can load your cutter head immediately without sourcing a second knife separately.
- 1-37/64 in. cutting height with a 20mm radius - the generous cutting height and defined radius reproduce a consistent, repeatable molding profile pass after pass, reducing sanding and cleanup time.
- 5/32 in. (4mm) maximum knife thickness - the slim profile fits precisely into compatible 40mm insert cutter head slots, ensuring a secure, chatter-free seating during operation.
- Made of alloyed steel - the alloy steel construction maintains a sharp cutting edge longer than plain steel, supporting extended production runs before re-sharpening is needed.
- Compatible with CMT universal cutter heads (692 series) - the 40x4mm knife format fits the broad range of CMT insert shaper cutter heads, making it easy to swap profiles without purchasing a new cutter body.
- Long-lasting performance - durable material and precision construction mean fewer blade changes, lower downtime, and more consistent results across hardwood, softwood, MDF, and chipboard workpieces.
- Part of a variety of profile knives for universal cutter heads - profile 131 is one option within a comprehensive CMT system, so you can build a library of profiles on a single set of cutter heads.
Why This Product
- Engineered for the CMT Insert Shaper System - if you already own CMT 692 series cutter heads, these 40x4mm knives drop in directly, giving you a new molding profile without the cost of a dedicated cutter body for each shape.
- Alloyed steel construction for production-level durability - shops that run hardwood, MDF, or chipboard regularly benefit from a blade material that holds its edge through demanding workloads, keeping profile quality consistent throughout a run.
- Compact 40x4mm format with a 20mm radius - the defined geometry means the profile is repeatable across every board, which is critical for cabinet door, frame, and panel work where matching parts must align precisely.
- Sold in a pair - both knives arrive together, so cutter head setup is straightforward and balanced from the start, reducing preparation steps at the machine.
Specifications
- Manufacturer Part Number: 690.131
- Brand: CMT Orange Tools
- Cutting Height: 1-37/64 in.
- Radius: 20mm
- Maximum Thickness: 5/32 in.
- Knife Size: 40x4mm
- Material: Alloyed Steel (SP)
- Compatible System: CMT Insert Shaper System - CMT 692 series cutter heads
- Quantity: 2 knives (sold as a pair)
Approved Applications
- Molding and Profiling
- Cabinet Door Making
- Edge Profiling
- Frame and Panel Work
Frequently Asked Questions
What cutter heads are these profile knives compatible with?
These 40x4mm profile knives are designed for use with CMT universal cutter heads in the 692 series Insert Shaper System. They fit cutter heads that accept 40mm format knives in the 40x4mm slot size.
How many knives come in a package?
Each package contains a matched pair of 2 profile knives (KSS 40x4mm), providing everything needed to load a balanced cutter head with profile 131.
What materials can these profile knives be used on?
The alloyed steel construction supports long-lasting cutting performance on hardwood, softwood, MDF, and chipboard, making these knives suitable for cabinet, furniture, and millwork production environments.
What machines are these profile knives intended for?
These profile knives are intended for use on spindle moulders, moulders, and profile and edging machines that accept the CMT Insert Shaper System cutter heads using the 40x4mm knife format.
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