Product Description
CMT 690.084 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), engineered for use with CMT universal cutter heads in the Insert Shaper System. These KSS-format knives deliver consistent molding and profiling results across a wide range of woodworking applications, making them a dependable choice for cabinetmakers, millwork shops, and professional woodworkers who demand repeatable profile quality from their spindle moulders and shaper machines.
Key Features
- Alloyed steel construction (SP material grade) - provides durability and edge retention through extended production runs, reducing the need for frequent knife changes and downtime.
- KSS 40x4mm knife format - fits the CMT Insert Shaper System and compatible universal cutter heads, giving woodworkers flexibility across multiple setups without needing dedicated tooling for each profile.
- Sold as a matched pair (2 knives) - ensures balanced cutting on both sides of the cutter head simultaneously, promoting smooth chip ejection and a cleaner surface finish on the workpiece.
- Part of a broad range of profile knives for the universal cutter heads - the 690 series offers a variety of molding profiles, so shops can expand their shaping capabilities by stocking multiple profile numbers to the same knife format.
- Long-lasting performance - the alloyed steel material is designed for sustained use on solid wood and engineered panels, supporting high-volume production with consistent profile accuracy over time.
Why This Product
- Interchangeable profile system - because these knives conform to the KSS 40x4mm standard, one set of cutter heads can accept many different profile knives. Shops can switch profiles quickly without investing in entirely new tooling for each molding pattern.
- Purpose-built for profile 084 - each knife pair is ground to a specific, repeatable molding profile, which means every workpiece comes out consistent - critical for cabinet door making, frame-and-panel work, and decorative molding production.
- Alloyed steel for production environments - the SP-grade material is selected for sustained edge performance, making these knives well suited for shops running hardwood, softwood, MDF, and chipboard without constantly stopping to re-edge or replace tooling.
- Precision-matched pair - receiving two matched knives in every pack means both cutting edges enter service together, maintaining cutter head balance and helping protect both the machine and the workpiece surface quality.
Specifications
- Manufacturer Part Number: 690.084
- Brand: CMT Orange Tools
- Cutting Height: 1-37/64 in.
- Maximum Thickness: 5/32 in.
- Knife Size: 40x4mm (1-37/64 in. x 5/32 in.)
- Material: Alloyed Steel (SP)
- Knife Format: KSS 40x4mm
- Quantity: 2 knives (sold as a pair)
- System Compatibility: CMT Insert Shaper System - universal cutter heads
Approved Applications
- Molding and profiling on spindle moulders and shaper machines
- Cabinet door making
- Edge profiling on solid wood and engineered panels
- Frame and panel work
- Decorative millwork and trim profiling
What's Included
- 2x CMT 690.084 profile knives (matched pair, KSS 40x4mm format)
Frequently Asked Questions
What cutter heads are these knives compatible with?
The CMT 690.084 knives are designed for use with CMT universal cutter heads in the Insert Shaper System. They conform to the KSS 40x4mm knife format, which is accepted by CMT's 692 series cutter heads and other compatible insert shaper heads that accept 40mm knives in this format.
How many knives come in one pack?
Each pack contains 2 knives - sold as a matched pair. Both knives are ground to the same profile 084 specification, so they are installed together on the cutter head for balanced cutting performance.
What material are the CMT 690.084 knives made from?
These knives are made from alloyed steel (designated SP material grade). This material is selected for durability and sustained edge retention during profiling and molding operations on a variety of wood-based materials.
Can these knives be used interchangeably with other profiles in the 690 series?
Yes - the CMT 690 series offers a variety of profile knives for the universal cutter heads, all sharing the KSS 40x4mm format. This means the same cutter head can accept different profile numbers from the 690 series, making it easy to switch between molding profiles without changing the entire tooling setup.
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