CMT Blank Profile Knives for Insert Shaper Systems - 2-Pack (690.193) by CMT are unsharpened alloyed steel shaper knives designed to be custom-ground to any molding profile you need. Measuring 40mm cutting height with a 32.5mm relative length and 1-3/4 in. total length, these blank knives fit the CMT Insert Shaper System and give woodworkers the flexibility to create bespoke profiles for molding, cabinet doors, edge profiling, and frame-and-panel work. Sold as a pair, the 690.193 is the go-to blank knife for shops that want a versatile, reshapeable cutting solution for both production and custom woodworking.

Key Features

• Alloyed Steel Construction - made of alloyed steel (SP grade) for durability and long-lasting performance, meaning the knives hold a ground edge well and deliver reliable service across repeated sharpening cycles.
• Blank Profile - Ready to Be Sharpened to Any Shape - supplied unground so you or a professional sharpening service can cut any custom molding profile, giving your shop the freedom to match period moldings, proprietary profiles, or unique designs without sourcing a dedicated cutter head.
• Maximum Profile Capacity of 18mm (23/32 in.) - the usable profile depth of 18mm means you can grind a substantial molding shape into each knife, supporting a wide range of decorative and functional profiles in a single pass.
• Pair of 2 Knives Included - both knives in the pair are ground together to guarantee a perfectly matched, balanced profile, which is essential for smooth cutting, minimal vibration, and a consistent surface finish on your workpiece.
• 4mm (0.157 in.) Knife Thickness - the precise 4mm body thickness ensures a secure, stable fit in compatible insert shaper cutter heads, reducing chatter and supporting clean, accurate profile cuts at the spindle moulder or moulder.
• Long-Lasting Performance - engineered for extended service life, these blank knives resist wear so you can resharpen and reuse them multiple times, delivering ongoing value across a broad range of profiling and edging applications.

Why This Product

• Total Profile Flexibility - because these knives ship unground, you are not locked into a fixed profile. Any woodworking shop with sharpening capability - or access to a sharpening service - can grind the exact shape required, making the 690.193 one of the most versatile knife options in the CMT Insert Shaper system lineup.
• Cost-Effective Custom Profiling - instead of purchasing a dedicated, single-purpose cutter head for every new profile, you can grind these blank alloyed steel knives to match the specific molding you need, reducing tooling cost for short runs or one-off custom profiles.
• Matched Pair for Balanced Cutting - the two knives are sold and ground as a matched set, ensuring balanced weight distribution in the cutter head. Balanced inserts are critical for reduced vibration, safer spindle operation, and a smoother finish on hardwood, softwood, MDF, and chipboard workpieces.
• Designed for the CMT Insert Shaper System - with a 40mm cutting height, 32.5mm relative length, and 4mm thickness sized specifically for CMT insert cutter heads, these blank knives integrate directly into the system without modification, saving setup time and maintaining compatibility with your existing tooling investment.

Specifications

• Manufacturer Part Number: 690.193
• Brand: CMT Orange Tools
• Material: Alloyed Steel (SP)
• Cutting Height: 40mm
• Teeth Thickness: 0.157 in.
• Total Length: 1-3/4 in.
• Relative Length: 32.5mm
• Maximum Profile: 18mm (23/32 in.)
• Quantity: 2 knives (pair)
• Knife Profile: Blank (to be sharpened)

Approved Applications

• Molding and profiling on spindle moulders and moulders
• Cabinet door making with custom profile requirements
• Edge profiling on hardwood, softwood, MDF, and chipboard
• Frame and panel work with bespoke molding shapes
• Profile and edging machine operations requiring custom insert knife profiles

What's Included

• 2x CMT 690.193 Blank Alloyed Steel Knives (pair, unsharpened)