Naniwa Flattening Stone A specialized abrasive stone designed to level the working surface of whetstones Purpose Restore a flat surface During the sharpening process, stones wear unevenly, which leads to the appearance of depressions and unevenness. Using a flattening stone allows you to restore the perfectly flat surface of the whetstone, ensuring stable and predictable results when sharpening. How it works Coarse and effective Flattening Stone has a coarse, flat abrasive surface that allows you to quickly remove excess material from protruding areas of the whetstone and renew its surface. It ensures the correct geometry of the working surface and keeps abrasives in optimal condition for precise hand sharpening. How to use Use with water Wet the whetstone and flattening stone with water. Move the flattening stone across the surface of the whetstone in straight or circular motions. Change the direction of movement periodically to remove material evenly. Continue until the surface is flat again. When finished, rinse and dry both stones. Specifications PurposeLeveling the working surface of whetstones Size6-11/16×2-3/16×1-1/8" (170×55×30 mm) Abrasiveness220 grit MaterialAbrasive composite Conditions of useUse with water CompatibilityMost water and combination whetstones Country of originJapan .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} /* HERO */ .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; } /* LABELS */ .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; line-height:1.2!important; font-weight:700!important; letter-spacing:.06em!important; text-transform:uppercase; color:#6e6e73!important; font-family:'Montserrat',sans-serif!important; } .r2-case-apple .r2-card-label.light{ color:rgba(255,255,255,.72)!important; } /* FEATURES */ .r2-feature-grid{display:grid;gap:16px} .r2-feature-grid-2{grid-template-columns:repeat(2,1fr)} .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; } /* SPLIT */ .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; } /* TECH */ .r2-dark-card{ background:#191919; color:#fff; border-radius:28px; padding:28px; } .r2-dark-card-soft{ border-radius:32px; } .r2-dark-copy{ margin-bottom:14px; } .r2-spec-grid{ display:grid; gap:18px; } .r2-spec-grid-2{ grid-template-columns:repeat(2,minmax(0,1fr)); } .r2-spec-item{ background:linear-gradient(180deg, rgba(255,255,255,.075), rgba(255,255,255,.055)); border-radius:20px; padding:20px; } .r2-spec-lines{ display:flex; flex-direction:column; gap:14px; } .r2-spec-lines div{ display:grid; grid-template-columns:150px minmax(0,1fr); gap:18px; } .r2-spec-lines span{ font-size:13px; color:rgba(255,255,255,.72); } .r2-spec-lines b{ font-size:14px; font-weight:600; color:#fff; text-align:right; word-break:break-word; } /* MOBILE */ @media(max-width:989px){ .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-subtitle{ font-size:17px; } .r2-spec-lines div{ grid-template-columns:1fr; } .r2-spec-lines b{ text-align:left; } }
