CMT 690.127 Profile Knives for Insert Shaper System are alloyed steel shaper knives designed for use with CMT universal cutter heads, delivering precise molding and profiling results on a wide range of wood-based materials. Sold as a pair (2 knives), these 40x4mm insert knives measure 1-37/64 in. in cutting height with a maximum thickness of 5/32 in., and are engineered to drop into compatible insert shaper systems for consistent, repeatable profile work. Whether you are shaping cabinet door profiles, running decorative molding, or edge profiling solid wood and sheet goods, these CMT insert shaper knives offer the long-lasting performance that professional woodworkers depend on.

Key Features

• Alloyed Steel Construction - made of alloyed steel for durability and edge retention through extended production runs on hardwood, softwood, MDF, and chipboard.
• 40x4mm Knife Size (1-37/64 in. x 5/32 in.) - precisely sized to fit insert shaper cutter heads that accept KSS 40x4mm knives, ensuring a secure, vibration-free seat during operation.
• 90 deg. Cutting Angle - a 90 deg. cutting angle produces clean, square profile cuts with minimal tearout, making finishing faster and easier.
• Sold as a Matched Pair - both knives in the pair are matched and ground to the same profile, so balanced cutter head loading is maintained for a smooth, chatter-free cut.
• Part of the CMT Universal Cutter Head System - compatible with CMT universal cutter heads that accept this profile knife series, giving operators access to a wide variety of molding shapes without changing the entire tooling assembly.
• Long-Lasting Performance - engineered for sustained cutting life, reducing downtime between sharpenings and lowering overall tooling cost per profile foot.

Why This Product

• Profile versatility within a single system - these 40x4mm insert knives are part of a broad library of profile knives for CMT universal cutter heads, so one set of cutter heads can handle dozens of profiles simply by swapping knives - no need to purchase entirely new tooling for each shape.
• Consistent results on multiple material types - the alloyed steel construction and precision profile grind make these knives suitable for hardwood, softwood, MDF, and chipboard, covering the full range of materials encountered in cabinet making, millwork, and furniture production.
• Matched-pair design eliminates setup guesswork - because both knives are paired and matched to the same profile, cutter head balance is maintained right out of the box, reducing setup time and the risk of vibration-related surface defects.
• 90 deg. cutting angle suited to clean molding work - the defined 90 deg. cutting angle is appropriate for the type of precise profile and edging operations these knives are designed for, supporting professional-quality results in molding, frame-and-panel work, and edge profiling applications.

Specifications

• Manufacturer Part Number: 690.127
• Brand: CMT Orange Tools
• Cutting Height: 1-37/64 in.
• Maximum Thickness: 5/32 in.
• Knife Size: 40x4mm
• Cutting Angle: 90 deg.
• Material: Alloyed Steel
• Quantity: 2 knives (sold as a pair)
• System Compatibility: CMT Insert Shaper System - Universal Cutter Heads (KSS 40x4mm series)

Approved Applications

• Molding and profiling on spindle moulders and profile machines
• Cabinet door making and frame-and-panel work
• Edge profiling on hardwood, softwood, MDF, and chipboard
• Decorative molding production on edge and profiling machines