Upgrade your woodworking workflow with the Freud C310 4" (L) High Speed Steel Industrial Planer and Jointer Knives. Specifically designed to fit C310-style blades, these replacements bring professional-level precision to every pass and help you achieve flawless surfaces on a wide range of projects.

• Premium High Speed Steel stock. Built for durability, these knives resist wear and maintain their edge longer under demanding planing and jointing tasks.
• Pre-ground to a razor-sharp edge. Right out of the packaging, you’ll experience a consistently clean cut that reduces tear-out and produces smoother finishes on even challenging timbers.
• Exact C310 profile compatibility. Precision-ground to match Freud/Diablo C310 4" knives, ensuring a tight, wobble-free fit and dependable performance in compatible planers and jointers.
• Consistent thickness and flatness. Engineered to maintain parallelism across the blade, helping you achieve uniform shavings and minimizing snipe or uneven surfaces over long runs.
• Versatile use across woods and veneers. Ideal for softwoods, hardwoods, plywood, and laminated stock, delivering a clean edge and a superior surface finish on each board.
• Practical replacement solution for professionals and serious hobbyists. A reliable upgrade for shops that demand repeatable results, reduced downtime, and fewer interruptions for blade maintenance.

Why this matters: a sharp, well-formed knife set is the difference between a mediocre pass and a pristine plane or joint. The Freud C310 knives deliver reliable edge retention, precise cutting geometry, and a finish you can trust on everything from cabinetry to shelving and panels.

Tips for best results: install with the correct orientation for your machine, ensure the knives sit flush in the knife slots, and remove any burrs after seating to prevent chatter. For optimal longevity, clean the blades after heavy use and avoid overheating during heavy stock removal. When you need to maintain consistent quality across demanding projects, these C310 4" knives are a dependable, long-lasting choice.