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Hapstone Optimal stones set
USD 79.00
Hapstone USA
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Hapstone Optimal Stone Set Reliable water stones with vitrified bond for controlled sharpening of EDC, kitchen, and outdoor knives up to 62 HRC. Abrasive Aluminum oxide Designed fo
r fast and controlled metal removal with an even scratch pattern and low clogging. Binder Vitrified bond The vitrified bond gives stable sharpening behavior and reliable performance during regular knife maintenance. Use Water only Soak for 2–3 minutes before use and spray water during sharpening. Do not use oil. Set includes Five-stone progression The set includes Hapstone Optimal F220, F400, F500, F1000, and F1200 stones. This progression covers sharpening from coarse edge work to fine edge refinement. Conversion Grit conversion table Open the table to compare FEPA grit, JIS equivalent, and micron size. Open grit conversion table + FEPA JIS Microns F220 #250 50 µm F400 #600 20 µm F500 #1000 10 µm F1000 #3000 5 µm F1200 #4000 3 µm Performance Controlled water-stone sharpening Hapstone Optimal stones are suitable for sharpening knives with steel hardness up to 62 HRC. They are pre-lapped and ready to use, easy to clean, and designed for EDC, kitchen, and outdoor blades. Specifications Working surface6” × 1” (150 × 25 mm) Abrasive thickness0.28” (7 mm) Blank size6.3” × 1” × 0.12” (160 × 25 × 3 mm) Total size6.3” × 1” × 0.39” (160 × 25 × 10 mm) AbrasiveAluminum oxide BinderVitrified Working withWater Country of originUkraine Stone typeStone mounted on a 45° beveled blank .r2-case-apple{color:#191919;line-height:1.5} .r2-case-apple *,.r2-case-apple *::before,.r2-case-apple *::after{box-sizing:border-box;font-family:inherit!important} .r2-case-apple img{display:block;width:100%;height:auto;border:0;border-radius:24px} .r2-case-apple section{margin:0 0 20px} .r2-hero{text-align:center;padding:12px 0 4px} .r2-hero-copy{max-width:760px;margin:0 auto 18px} .r2-hero-media{max-width:520px;margin:0 auto} .r2-hero h1{ margin:0 0 12px; font-weight:700; letter-spacing:-0.02em; font-family:'Montserrat',sans-serif!important; color:inherit; } @media(min-width:575px){ body .r2-case-apple .r2-hero .r2-hero-copy h1.hero-text{ font-size:36px!important; line-height:50px!important; 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