Restore dull knives, blades, and scissors to "like-new sharpness." This is the 【Diamond Whetstone (400 grit & 1000 grit) 2-piece set】. Thin, high-hardness, and non-slip, it achieves professional-grade results at home. "The blade has become dull," "The blade chips easily," "It dulls quickly even after sharpening" — This set solves those problems. ◆ 400 grit: For coarse sharpening 　Effectively repairs chipped blades and knives with significantly reduced sharpness. 　The coarse side is ideal for the "restoration step" to regain sharpness. ◆ 1000 grit: For medium finishing 　After shaping with the 400 grit, smooth with the 1000 grit. 　Leads to a smooth, snag-free cutting edge. ◾️ Non-slip urethane sponge for safe work 　The back uses a urethane non-slip sponge. 　Prevents slippage during work and maintains a stable sharpening feel. 　Even beginners can use it with confidence. ◾️ High hardness & multi-purpose design 　Widely compatible with steel, stainless steel, ceramic knives, scissors, knives, 　chisels, planes, Japanese swords, and agricultural tools. 　Also ideal for detailed polishing of camping gear, DIY projects, plastic models, and mini 4WD cars. 　Also works as a repair whetstone. ◾️ Thin & easy to carry 　Only about 3mm thick. 　Saves space for storage and is convenient for outdoor activities and business trips. 　Fits neatly in a toolbox or tool box. 【How to use】 　Before use, sharpen while lightly applying water to the surface of the whetstone, 　allowing metal powder to flow away and enabling smooth sharpening. 　After use, wash with water and store after drying. 　*Water sharpening is recommended, without using oil. 【Main compatible items】 　Knives (domestic and commercial), knives, scissors 　Chisels, planes, plastic models, mini 4WD parts 【Material & Size】 　Material: Diamond abrasive, urethane sponge 　Size: Approximately 15cm × 6.3cm × 3mm 　Grit: 400 grit / 1000 grit ★ Single pieces are also available! 　　#Mint's Repair Whetstone ★ Other products handled here 　　#Mint Shop ◾️ About Shipping 　Shipping method: Yu-packet Post mini 　*We ship the next day for payments confirmed by 10 PM. Each product is carefully inspected and packaged with waterproof measures before shipping. Please see the "Packing Example" in the image.