Naniwa Chosera Finishing Stone Set High-end aluminum oxide sharpening stones with a magnesia binder, mounted for Hapstone knife sharpeners. Abrasive Aluminum oxide Chosera stones are made of aluminum oxide and are used for sharpening knives on Hapstone knife sharpeners. Binder Magnesia binder The magnesia binder gives Chosera excellent sharpening quality and performance, with high wear resistance. Ready to use Pre-lapped stones Chosera stones are preliminarily lapped and do not require lapping after purchase. Included stones 10000grit 5000grit 3000grit 2000grit Recommended set Four Chosera stones The recommended set consists of four Chosera stones: 10000, 5000, 3000, and 2000 grit. Application For different knife steels Chosera series stones are universal and can be used to sharpen knives of any steel, including high carbon, vanadium, and chromium steels. The stones have a 150 × 25 × 5 mm working surface and are mounted on 160 × 25 × 3 mm forms. Lubricant Use with water Chosera should be used with water as a lubricant. Just splash the stone or use a water spray. Care Do not soak Do not soak Chosera stones in water for more than a few seconds. Never store stones in water and never dry near heat. Specifications Working surface5.9” × 0.98” × 0.2” (150 × 25 × 5 mm) Form size6.3” × 0.98” × 0.12” (160 × 25 × 3 mm) AbrasiveAluminum Oxide BinderMagnesia Working withWater Country of originJapan 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; } } .r2-subtitle{max-width:720px;margin:0 auto;font-size:19px;line-height:1.4;color:#6e6e73} .r2-case-apple .r2-feature-card p.r2-card-label, .r2-case-apple .r2-split-copy p.r2-card-label, .r2-case-apple .r2-dark-copy p.r2-card-label{ font-size:12px!important; font-weight:700!important; letter-spacing:.06em!important; text-transform:uppercase; color:#6e6e73!important; font-family:'Montserrat',sans-serif!important; margin:0 0 8px; } .r2-card-label.light{color:rgba(255,255,255,.72)!important} .r2-feature-grid{display:grid;gap:16px} .r2-feature-grid-2{grid-template-columns:repeat(2,1fr)} .r2-feature-grid-3{grid-template-columns:repeat(3,1fr)} .r2-feature-card{background:#f5f5f7;border-radius:24px;padding:24px} .r2-feature-card h2, .r2-split-copy h2{ margin:0 0 8px; padding-bottom:0!important; font-size:26px; line-height:1.15; font-weight:700; letter-spacing:-0.02em; } .r2-split-copy h2{font-size:28px} .r2-feature-card p, .r2-split-copy p{margin:0;font-size:16px;line-height:1.45;color:#373e48} .r2-feature-card p + p, .r2-split-copy p + p{margin-top:10px} .r2-split{ display:grid; grid-template-columns:1fr .9fr; gap:24px; align-items:center; background:#fbfbfd; border-radius:28px; padding:28px; } .r2-split-media{max-width:420px;margin:0 auto} .r2-duo{display:grid;grid-template-columns:.2fr 1fr;gap:16px;margin-bottom:20px} .r2-package-card{background:#f5f5f7!important;color:#191919} .r2-package-list{display:grid;gap:10px} .r2-package-list div{ display:grid; grid-template-columns:auto auto; justify-content:center; gap:12px; align-items:center; } .r2-package-list b{ font-size:15px; line-height:1.45; font-weight:600; color:#191919; text-align:left; } .r2-package-list span{ font-size:14px; line-height:1.45; color:#6e6e73; } .r2-dark-card{background:#191919;color:#fff;border-radius:28px;padding:28px} .r2-dark-card-soft{border-radius:32px} .r2-dark-copy{margin-bottom:18px} .r2-spec-grid{display:grid;gap:16px} .r2-spec-grid-2{grid-template-columns:repeat(2,1fr)} .r2-spec-item{background:rgba(255,255,255,.06);border-radius:18px;padding:18px} .r2-spec-lines{display:flex;flex-direction:column;gap:8px} .r2-spec-lines div{ display:flex; justify-content:space-between; align-items:flex-start; gap:12px; } .r2-spec-lines span{ font-size:13px; line-height:1.4; color:rgba(255,255,255,.75); white-space:nowrap; flex:0 0 auto; } .r2-spec-lines b{ font-size:14px; line-height:1.45; font-weight:600; color:#fff; text-align:right; flex:1 1 auto; min-width:0; word-break:break-word; overflow-wrap:anywhere; } @media(max-width:989px){ .r2-feature-grid-3, .r2-feature-grid-2, .r2-duo, .r2-split, .r2-spec-grid-2{grid-template-columns:1fr} } @media(max-width:749px){ .r2-feature-card, .r2-split, .r2-dark-card{padding:18px} .r2-spec-lines div{ display:grid; grid-template-columns:1fr; gap:3px; align-items:start; } .r2-spec-lines span{font-size:12px;line-height:1.35;white-space:normal} .r2-spec-lines b{ font-size:14px; line-height:1.4; text-align:left; white-space:normal; word-break:break-word; overflow-wrap:anywhere; } .r2-subtitle{font-size:17px} }
