หินลับมีดธรรมดาราคาไม่แพงจาก Do Home กับวิธีลับเบื้อต้น สำหรับมือใหม่

Buy one from Do Home for 60-100 baht. It's a normal grade synthetic sharpening stone. Soak it in water. While sharpening, sprinkle water or drop water on it regularly. Don't let the stone dry out. After sharpening for a while, if the stone is uneven, use a diamond stone to rub it to make the surface flat and even. Normal quality stones aren't very good or very fine. They're suitable for kitchen knives or general-purpose knives, carpenter's tools, and gardening equipment.