CMT Solid Carbide Reversible Insert Knives - 28.3x12x1.5mm, 4 Cutting Edges, 35 deg. Bevel, 10-Piece Pack are precision-ground throwaway knives engineered for indexable cutter head systems used in profiling, molding, and edge-shaping operations. Built from K1920 grade solid carbide, these reversible insert knives deliver consistent cutting performance across hardwood, softwood, MDF, chipboard, and plywood. Each pack contains 10 knives measuring 28.3mm in length, 12mm in height, and 1.5mm in thickness, giving woodworking shops and production facilities a ready supply of high-performance carbide insert tooling.

Key Features

• K1920 Solid Carbide Construction - tungsten carbide grade K1920 provides superior hardness and wear resistance, extending cutting life significantly compared to HSS alternatives when working hardwood, MDF, and chipboard.
• 4 Cutting Edges at 35 deg. Bevel - each knife offers four usable cutting edges, so when one edge dulls you simply rotate to the next, multiplying the service life of every knife in the pack and reducing tooling costs per linear foot of cut.
• Reversible Throwaway Design (HW-K1920) - the indexable format means no regrinding is needed; swap edges quickly and keep production running without machine downtime for sharpening.
• Precision Dimensions - 28.3x12x1.5mm - each knife is ground to exact tolerances across its full 28.3mm length, 12mm height, and 1.5mm thickness, ensuring repeatable profile accuracy and consistent fit within compatible cutter head systems.
• 10-Piece Pack Format - having 10 knives on hand means uninterrupted production runs, reducing the risk of downtime caused by running out of fresh cutting edges mid-job.
• Standard Indexable Knife Format (Class HKKRV) - the HKKRV classification confirms compatibility with standard reversible knife cutter head systems, making these a straightforward fit for spindle moulders and profile machines that accept this knife size.

Why This Product

• For shops processing demanding materials like MDF, chipboard, and hardwood regularly, the K1920 solid carbide grade holds a sharp edge far longer than conventional tooling, meaning fewer knife changes per shift and lower cost per cut.
• The 4-edge reversible design is purpose-built to maximize value - each knife effectively delivers four times the usable life of a single-edge knife, making this 10-piece pack go further on the shop floor.
• Precision grinding to the exact 28.3x12x1.5mm standard indexable specification ensures these knives seat correctly in compatible cutter heads, maintaining profile consistency from the first cut to the last edge on the final knife.
• The 35 deg. bevel angle is matched to standard reversible knife cutter head geometry, so woodworkers get clean, accurate profiles on molding, rabbeting, grooving, and jointing operations without adjusting head setup between knife changes.

Specifications

• Manufacturer Part Number: 790.283.12
• Brand: CMT Orange Tools
• Material: K1920 Solid Carbide
• Total Length: 28.3mm
• Cutting Depth: 12mm
• Cutting Height: 12mm
• Thickness: 1.5mm
• Angle: 35 deg.
• Number of Cutting Edges: 4
• Knife Type: Standard Reversible Throwaway (Indexable)
• Classification: HKKRV
• Quantity: 10-Piece Pack

Approved Applications

• Profiling and Molding
• Edge Profiling
• Rabbeting
• Grooving
• Jointing
• Use on Spindle Moulders
• Use on Profile Machines
• Use on Edging Machines
• Use on Router Tables with Compatible Cutter Heads

Compatible Materials

• Hardwood
• Softwood
• MDF
• Chipboard
• Plywood