We process all orders within 1 to 5 business days, with delivery times varying based on your location and shipping method selected at checkout. Once your order has shipped, you'll receive a confirmation email containing your tracking information, which becomes active within 24 hours. Please note that orders are not processed on weekends or public holidays, and shipping times may be extended during periods of high order volume. Any customs duties, import taxes, or related fees are the responsibility of the customer. If your order arrives damaged, please retain the original packaging and contact the shipping carrier to initiate a claim as soon as possible.
Commercial Grade Finishing Sharpening Stone Engineered for Precision Edge Refinement
The Shapton GlassStone 4000 3 Micro Class Type WA 50103 is engineered for professional edge refinement, delivering exceptional sharpening consistency for chefs, craftsmen, and knife enthusiasts who demand superior cutting performance. Built with Shapton's advanced ceramic abrasive technology, this fine grit stone rapidly develops a refined, razor sharp edge while maintaining outstanding flatness and durability throughout repeated professional use.
Technical Specifications & Engineering Data
| Specification Metric | Commercial Field Tested Data |
|---|---|
| Manufacturer Brand | Shapton |
| Model / Series Line | GlassStone 4000 3 Micro Class Type WA 50103 |
| Material Composition | High Performance Ceramic Abrasive with Glass Backing |
| Grit Rating | #4000 Fine |
| Abrasive Classification | 3 Micro Class Type WA |
| Stone Type | Professional Glass Backed Water Stone |
| Color | Silver |
| Exact Physical Dimensions | 8.27 × 2.76 × 0.39 Inches |
| Product Weight | 360 g |
| Recommended Lubrication | Water Only |
| Commercial Application | Fine Edge Refinement and Precision Knife Sharpening |
Core Operational Features
Professional Fine Edge Refinement: The #4000 grit provides an ideal finishing stage for refining sharpened edges, producing exceptional cutting performance with a smooth, controlled finish suitable for professional kitchen and workshop environments.
Advanced Ceramic Abrasive Technology: Manufactured using Shapton's premium ceramic formulation, the stone delivers fast, efficient material removal while maintaining a highly consistent abrasive surface for repeatable sharpening results.
Glass Backed Construction: The precision bonded glass backing enhances structural stability, helping the stone maintain excellent flatness during sharpening while providing reliable support throughout extended use.
High Density Wear Resistance: Engineered to resist excessive wear, the dense ceramic composition extends service life and minimizes the frequency of flattening compared to conventional water stones.
Excellent Sharpening Control: The fine abrasive structure promotes smooth blade movement and precise edge development, making it well suited for maintaining premium kitchen knives and precision cutting tools.
Professional Applications
Designed for professional chefs, culinary schools, knife sharpening specialists, woodworkers, and serious enthusiasts, the GlassStone 4000 excels as a finishing stone for chef's knives, Japanese cutlery, utility knives, woodworking tools, and other precision blades requiring a refined, highly functional cutting edge.
Why Professionals Choose It
Professionals trust the Shapton GlassStone series for its rapid cutting performance, dependable abrasive consistency, and long lasting durability. The #4000 grit strikes an excellent balance between refinement and cutting efficiency, making it a preferred choice for routine edge maintenance and professional sharpening workflows where precision and repeatability are essential.
Care & Maintenance
Use clean water as the sharpening lubricant before and during use. Rinse the stone thoroughly after each sharpening session and allow it to dry completely before storage. Periodically inspect the surface for flatness and resurface when necessary to maintain consistent sharpening accuracy. Store in a clean, dry location to preserve long term performance.







