KAI Shun AP-0342 Diamond Sharpening Stone Grit 4000 for Knives

The KAI Shun AP-0342 Diamond Sharpening Stone Grit 4000 is engineered for the final stages of knife sharpening, providing outstanding edge refinement and polishing for high-performance blades. Specially developed for Japanese knives and high-hardness steels, it combines advanced diamond technology with the precision of Japanese craftsmanship.

Its 4000-grit diamond abrasive is ideal for refining and smoothing the cutting edge after sharpening with coarser stones. The result is a cleaner, sharper, and more precise edge that enhances cutting performance and control.

The ultra-hard diamond surface sharpens hardened steels significantly faster than conventional stones while maintaining exceptional flatness and durability thanks to its advanced sintered construction.

Unlike traditional water stones, the AP-0342 requires no soaking before use. Simply wet the surface before and during sharpening for immediate operation. Each stone also includes a silicon carbide dressing stone for cleaning and maintaining optimal sharpening performance.

Key Features

• Premium Japanese diamond sharpening stone.
• 4000 grit for fine sharpening and edge polishing.
• Ideal for Japanese knives and hard steel blades.
• Produces a refined, razor-sharp edge.
• No soaking required.
• Flat surface with minimal wear.
• Includes silicon carbide dressing stone.
• Long-lasting professional performance.
• 24 x 8,6 x 2,1 cm

Benefits of 4000 Grit

A 4000-grit sharpening stone is perfect for achieving a highly refined edge and improving cutting smoothness. It enhances sharpness, precision, and overall knife performance while preparing the blade for demanding cutting tasks.

Safety Instructions

Only trained individuals or users under proper supervision should sharpen cutting tools. Always use the sharpening stone according to the manufacturer's instructions and keep it adequately wetted during use.

Sharpen away from the body at all times and place the stone on a stable work surface with sufficient workspace. Test sharpness using a paper-cutting test only and never with hands or other parts of the body.