Product Description
CMT 690.122 Profile Knives for Insert Shaper System are precision-crafted shaper knives designed to work with CMT universal cutter heads, giving woodworkers a reliable way to produce consistent molding profiles on hardwood, softwood, MDF, and chipboard. Sized at 1-37/64 in. x 5/32 in. (40x4mm), these alloyed steel knives are part of CMT's comprehensive insert shaper system and are sold as a matched pair, ensuring balanced performance with every pass.
Key Features
- Pair configuration (2 knives): Sold as a matched set of two - both knives are precisely matched so the cutter head stays balanced and delivers a clean, vibration-free cut on every pass.
- KSS 40x4mm knife size: The 1-37/64 in. cutting height and 5/32 in. maximum thickness fit directly into CMT universal cutter heads, eliminating guesswork about compatibility and setup time.
- Made of alloyed steel (SP material): Alloyed steel construction provides toughness and edge retention across demanding production runs, reducing the frequency of knife changes and downtime.
- Part of the CMT universal cutter head system: Designed as one of a variety of profile knives for CMT insert cutter heads, making it easy to swap profiles without replacing the entire tooling assembly.
- Long-lasting performance: Engineered for extended service life even in heavy-use environments, meaning lower cost per linear foot of profiled material over time.
Why This Product
- If you already own a CMT universal cutter head, the 690.122 profile knives let you expand your molding capabilities without investing in an entirely new cutter head - simply swap in a fresh knife pair for a different profile.
- The 40x4mm format is a widely used insert shaper knife standard, so these knives integrate seamlessly into systems designed around that size, reducing compatibility concerns when building out a shaper tooling library.
- Alloyed steel construction holds up through repetitive profiling passes on demanding materials like hardwood and MDF, making this pair a dependable choice for production shops and serious woodworking applications.
- Buying profile knives in matched pairs ensures balanced cutting forces across the cutter head, which contributes to smoother surface finishes and consistent profile results on frame, panel, and molding work.
Specifications
- Manufacturer Part Number: 690.122
- Brand: CMT Orange Tools
- Cutting Height: 1-37/64 in.
- Maximum Thickness: 5/32 in.
- Knife Size: 40x4mm
- Material: SP (alloyed steel)
- Quantity: 2 knives (sold as a pair)
- System: CMT Insert Shaper System
Approved Applications
- Molding and profiling on hardwood and softwood
- Edge profiling on MDF and chipboard panels
- Cabinet door making and frame profiling
- Frame and panel work on spindle moulders and profile machines
Frequently Asked Questions
What cutter heads are these profile knives compatible with?
The CMT 690.122 knives are designed for use with CMT universal cutter heads that accept the 40x4mm (KSS) insert knife format. They are part of CMT's insert shaper system, which accommodates a variety of profile knife pairs for flexible molding and profiling work.
How many knives come in each order?
Each order of the CMT 690.122 includes 2 knives, sold as a matched pair. Running a matched pair is essential for keeping the cutter head balanced and achieving a consistent profile across the full length of your workpiece.
What materials can these knives profile effectively?
These alloyed steel profile knives are suited for use on hardwood, softwood, MDF, and chipboard. The SP alloyed steel material is chosen to provide the edge durability needed for long-lasting performance across these common woodworking materials.
What does the "variety of profile knives" aspect of this system mean for my shop?
CMT offers a range of profile knife pairs - each with a different molding profile - all designed to fit the same universal cutter heads. This means you can build a library of profile options and switch between them quickly without needing a separate cutter body for each profile, keeping tooling costs manageable and setup times short.
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