✦ Verified product
Hapstone Ruby Ceramic Extra Fine Stone (Lapped/Ready)
USD 33.00
Hapstone USA
Verified independent store
→
Hapstone Ruby Ceramic Extra Fine Stone Extremely hard ceramic sharpening stone designed for edge refinement and fine finishing with minimal wear over time. Hard ceramic Exceptional
durability Extremely hard alumina ceramic construction provides outstanding wear resistance and long service life. Fine finish Approx. 3000 JIS Produces a refined cutting edge suitable for finishing and edge maintenance after coarser sharpening stages. Ready to use Pre-lapped Lapped with silicon carbide powder and finished with minimal chamfers for immediate use. Performance Consistent finishing results The dense ceramic structure delivers stable sharpening performance while maintaining flatness for an extended period. Its extra-fine abrasive action makes it well suited for refining and smoothing the cutting edge after primary sharpening. Compatible lubricants • Hapstone oil • Norton oil • Boride oil • Refined olive oil • Oleic acid • Water Compatibility Fits all Hapstone sharpeners Mounted on a high-quality aluminum blank and fully compatible with the entire Hapstone sharpening system lineup. Specifications Product size 6.3" × 1" × 0.35" (160 × 25 × 9 mm) Working surface 5.9" × 1" × 0.24" (150 × 25 × 6 mm) Weight 2.5 oz (70 g) Abrasive Ceramic Estimated grit Approx. 3000 JIS Blank Black anodized aluminum Working with Oil, water Country of origin Ukraine Stone type Stone 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:420px;margin:0 auto} .r2-hero h1{ margin:0 0 12px; font-weight:700; letter-spacing:-0.02em; font-family:'Montserrat',sans-serif!important; } @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{ margin:0 0 8px; font-size:12px!important; font-weight:700!important; letter-spacing:.06em!important; text-transform:uppercase; color:#6e6e73!important; font-family:'Montserrat',sans-serif!important; } .r2-card-label.light{color:rgba(255,255,255,.72)!important} .r2-feature-grid{display:grid;gap:16px} .r2-feature-grid-3{grid-template-columns:repeat(3,1fr)} .r2-feature-grid-2{grid-template-columns:repeat(2,1fr)} .r2-feature-card{ background:#f5f5f7; border-radius:24px; padding:24px; } .r2-feature-card-1{ align-content:center; } .r2-feature-card h2, .r2-split-copy h2{ margin:0 0 8px; font-size:26px; font-weight:700; padding-bottom:0!important; } .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:320px; margin:0 auto; } .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; color:rgba(255,255,255,.75); } .r2-spec-lines b{ font-size:14px; color:#fff; text-align:right; } @media(max-width:989px){ .r2-feature-grid-3, .r2-feature-grid-2, .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; } .r2-spec-lines b{ text-align:left; word-break:break-word; overflow-wrap:anywhere; } .r2-subtitle{ font-size:17px; } }
