Product Description
CMT 690.175 Profile Knives for Insert Shaper System are a pair of alloyed steel shaper knives sized 1-37/64 in. x 5/32 in. (40x4mm) designed for use with CMT universal cutter heads. These KSS-style profile knives deliver long-lasting performance in molding, profiling, and edge shaping applications on wood and engineered wood materials. With a 10mm radius and a clean profile geometry, this 2-piece set gives woodworkers a reliable, repeatable cutting solution for spindle moulders, shapers, and profile machines.
Key Features
- Alloyed steel construction - provides durability and long service life, reducing how often knives need to be replaced during production runs
- 1-37/64 in. cutting height with 10mm radius - delivers a precise, consistent profile on every pass, resulting in smooth molding and edge surfaces without secondary sanding
- 40x4mm (1-37/64 in. x 5/32 in.) knife size - fits the CMT universal cutter head system and is compatible with a wide variety of insert shaper setups accepting this knife format
- Sold as a matched pair (2 knives) - both knives are part of the KSS 40x4mm system, ensuring balanced cutting and reduced vibration during operation
- Part of a broad library of profile knife options - the 690 series offers a variety of profiles for the universal cutter heads, giving woodworkers flexibility to switch profiles without changing cutter body hardware
Why This Product
- Designed for the CMT insert shaper system - these knives are purpose-built for CMT universal cutter heads, meaning setup is straightforward and profile repeatability is built into the system design
- Long-lasting alloyed steel for demanding work - the SP material grade is engineered for sustained performance in hardwood and softwood milling environments where edge retention matters
- 10mm radius profile in a compact 40x4mm footprint - makes this knife well suited for cabinetry, door frame profiling, and furniture molding where fine detail and clean curves are required
- Interchangeable across a broad cutter head lineup - the universal compatibility of the 40x4mm knife format means one cutter body can serve multiple profiles, reducing tooling investment
Specifications
- Manufacturer Part Number: 690.175
- Brand: CMT Orange Tools
- Cutting Height: 1-37/64 in.
- Radius: 10mm
- Maximum Thickness: 5/32 in.
- Knife Size: 40x4mm
- Material: SP (alloyed steel)
- Quantity: 2 knives (1 pair)
- System: CMT Insert Shaper System - universal cutter heads
Approved Applications
- Molding and profiling on spindle moulders and shapers
- Cabinet door making and frame profiling
- Edge profiling on hardwood and softwood workpieces
- Frame and panel work requiring a consistent curved profile
- Profile shaping on MDF and chipboard
Frequently Asked Questions
What cutter heads are these profile knives compatible with?
These 690.175 profile knives are designed for use with CMT universal cutter heads in the insert shaper system. They fit the KSS 40x4mm knife format, which is accepted by a variety of insert shaper cutter heads designed for this knife size.
How many knives come in one package?
Each order includes 1 matched pair - that is, 2 individual profile knives. Running a matched pair ensures balanced cutting forces and helps reduce vibration during shaping operations.
What is the profile radius for the 690.175 knives?
The 690.175 knives feature a 10mm radius. This curved profile geometry is well suited for decorative molding, edge profiling on cabinet components, and frame and panel work where a smooth, rounded detail is required.
What materials can these profile knives cut?
These alloyed steel (SP grade) knives are suited for use on hardwood, softwood, MDF, and chipboard. The durable material construction supports long-lasting performance across a range of common woodworking and cabinetry materials.
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