This double sided 8 x 3 diamond sharpening stone uses high grade resin bonded diamond material with dual sided abrasive layers. Each face features a 3.5mm thick grinding layer: 400 grit on one side and 1000 grit on the other. 8x3 diamond sharpening stone lasts 20 times longer than standard electroplated diamond whetstones, resisting thin coating wear, grain shedding and early performance loss.
Built for intermediate edge shaping and semi fine sharpening, this dual grit stone suits home kitchens, outdoor gear, DIY projects and professional sharpening workshops. It quickly fixes minor nicks on dull blades, removes coarse grinding marks, and establishes smooth, well aligned edge geometry efficiently.
Dual Grit Function | 400/1000 Grit Precision Matching
This 400/1000 medium grit combination is the golden standard for intermediate edge repair and pre fine sharpening. It supports one stop medium grind sharpening without switching multiple whetstones.✅ 400 Grit – Intermediate Grinding & Edge Correction
Ideal for blades with minor chips, bent edges or uneven profiles. It removes small nicks and reshapes distorted edges rapidly, trimming back heavily worn blades to get correct edge angle. Perfect for restoring everyday kitchen knives, outdoor folding knives and well used woodworking tools.
✅ 1000 Grit – Semi Fine Honing & Pre Polish
Solid semi fine grit to smooth scratches left by coarser abrasives. It refines edge lines, removes burrs and lays a clean base for subsequent high grit polishing work. Great for routine maintenance of chef knives, hunting knives and hand tools before moving to higher grit finishing stones.
Usage & Maintenance Instructions
- No Soaking Required: This is a water lubricated Flat diamond sharpening stone. No pre soaking needed. Simply spray clean water on the surface before use for instant sharpening.
- Wet Sharpening Recommended: Water lubrication reduces grinding heat to prevent blade annealing and edge damage. It also flushes away metal debris to avoid clogging and ensure consistent grinding accuracy.
- Proper Storage: Rinse and dry the stone thoroughly after each use. Store it in a dry and ventilated place to avoid resin aging caused by long term moisture.
Elevate your intermediate knife sharpening with Tainomo double sided 8 x 3 resin bonded 400/1000 diamond sharpening stone. Featuring 3.5mm thick abrasive layers and 20× longer lifespan, it delivers efficient edge correction and semi fine honing for reliable blade sharpening for home, outdoor and workshop use.