Hapstone Premium Diamond Stones Set Premium diamond sharpening stones with 100% diamond concentration and metal-organic bond for modern steels, ceramic knives, and long-lasting sharpening performance. Diamond abrasive For super steels Designed for modern high-alloy steels, hard steels, and ceramic knives while maintaining long-term sharpening efficiency. Bond system Metal-organic bond The metal-organic bond offers wear resistance close to metal bond while providing a softer and more pleasant sharpening feel. Concentration 100% diamond grain High diamond concentration provides efficient sharpening performance and consistent abrasive action across the full progression. Grit progression 200/160 µm80 grit 100/80 µm150 grit 40/28 µm400 grit 20/14 µm800 grit 7/5 µm2000 grit 3/2 µm5000 grit Care Easy surface cleaning Hapstone Premium Diamond stones do not require coolant before sharpening. The working surface can be cleaned with Hapstone Dressing Stone to remove metal particles from the abrasive layer. Performance Fast, consistent, and long-lasting As the abrasive layer wears, new diamond particles are exposed, helping the stone continue sharpening without a noticeable loss in performance. Hapstone Premium Diamond stones provide an aggressive yet controlled cutting action with a pleasant tactile response that can be compared to water stones. Recommended finish Complete with diamond suspension For the final finishing stage, use a diamond suspension such as Gunny Juice after the stone progression. This helps achieve a cleaner, more refined edge after sharpening with the fine diamond stones. Best for • Modern super steels • High-alloy steels • Ceramic knives • Full sharpening progression • Guided sharpening systems Specifications Stone size 6" × 0.94" × 0.12" (150 × 24 × 3 mm) Blank size 6.3" × 0.94" × 0.2" (160 × 24 × 5 mm) Abrasive Diamond Concentration 100% Binder Hybrid Blank Powder-coated aluminum blank 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:520px;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-feature-media { margin: -8px -8px 16px; } .r2-feature-media img { border-radius: 20px; } .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-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} } .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; } @media(max-width:989px){ .r2-duo{ grid-template-columns:1fr; } }
