CMT Reversible Throwaway Carbide Knives - 41/64" x 7/8" x 13/64" (10-Pack) by CMT are precision-ground, reversible insert knives engineered for edge rounding and chamfering applications. Manufactured from K1920 grade carbide material, these throwaway-style insert knives deliver consistent, repeatable cutting performance on spindle moulders, profile machines, and router table cutter head systems. With a radius of R = 3mm, each knife is purpose-built for edge rounding operations where clean, uniform profiles are essential across hardwood, softwood, and engineered wood materials.

Key Features

• K1920 Carbide Material - a high-performance tungsten carbide grade that provides extended cutting life and maintains sharp edges longer, reducing downtime and insert replacement frequency in production environments.
• Reversible Insert Design - when one cutting edge dulls, simply rotate the knife to expose a fresh edge, effectively doubling the usable life of each insert and lowering cost-per-cut over time.
• R = 3mm Edge Rounding Radius - precision ground to a consistent 3mm radius, ensuring uniform edge rounding and chamfering results across every pass and every workpiece in a production run.
• Exact Dimensional Tolerances (41/64" x 7/8" x 13/64") - tight dimensional accuracy means consistent seating in the cutter head, reducing vibration and delivering smooth, repeatable profile quality.
• Throwaway Knife Format - no resharpening required, eliminating the time and equipment cost of knife grinding while maintaining factory-level cutting geometry on every edge.
• 10 Inserts Per Pack - bulk packaging ensures an ample supply on hand to keep machines running without interruption during high-volume edging and moulding operations.

Why This Product

• The reversible, throwaway format eliminates the need for knife grinding setups - simply index to a new edge or swap in a fresh insert, keeping your spindle moulder or cutter head running with minimal downtime.
• The K1920 carbide grade is matched to demanding cutting applications involving hardwood, softwood, MDF, chipboard, and plywood, giving woodworkers and production shops a reliable edge-rounding insert that holds up under sustained use.
• The 3mm radius geometry is purpose-built for edge rounding and chamfering tasks, making these knives a direct fit for applications where a consistent, smooth rounded profile is required on finished workpieces.
• Buying in a 10-pack provides immediate on-hand stock for both indexing and replacement, supporting uninterrupted production schedules without waiting on single-insert restocking.

Specifications

• Manufacturer Part Number: 790.163.00
• Brand: CMT Orange Tools
• Diameter: 16mm
• Cutting Depth: 22mm
• Cutting Height: 22mm
• Teeth Thickness: 5mm
• Total Length: 16mm
• Radius: 3mm
• Knife Dimensions: 41/64" x 7/8" x 13/64"
• Material: K1920 Carbide
• Quantity: 10-Pack

Approved Applications

• Edge rounding on hardwood and softwood workpieces
• Edge rounding on MDF, chipboard, and plywood panels
• Chamfering operations on spindle moulders and profile machines
• Insert cutter head systems on router tables
• Edging machine operations requiring reversible insert knives