Shapton RockStar Sharpening Stone 4000 Grit

The Shapton RockStar 4000 is a fine-grade ceramic whetstone for re-sharpening and refining a dull blade in the second phase of honing — used after the 1000 before finishing with 8000 or 16000.

• 4000 grit — fine grade for second-phase honing
• 10mm solid ceramic stone — equivalent quality to the GlassStone series
• No soaking required — splash and go
• Optional stainless steel case available separately
• Dimensions: 210mm x 70mm x 10mm
• Made in: Japan

The Shapton RockStar series is a 10mm solid ceramic sharpening stone — no glass backing plate, just a full-depth ceramic abrasive block of equivalent quality to the GlassStone range. The ceramic cutting media delivers the same uniform, consistent abrasive performance that Shapton is known for. No soaking required.

The 4000 grit sits in the middle of the honing progression — used after the 1000 to refine the bevel and remove coarser scratch patterns before finishing with the 8000 or 16000.

GlassStone vs RockStar: The RockStar series is a 10mm solid ceramic stone. The GlassStone series features a 5mm tempered glass plate laminated to a 5mm ceramic abrasive layer. Both deliver equivalent sharpening quality.

How to Use: Splash the stone with water before use. Work the blade at a consistent angle across the stone in smooth, even strokes. Follow with 8000 or 16000 to finish.

Model: 60117
Grit: 4000
Grade: Fine
Dimensions: 210mm x 70mm x 10mm
Case: Not included
Made in: Japan