Japanese Knife Sharpening Guide Naniwa Simple angle guide for manual knife sharpening, designed to help maintain a consistent sharpening angle on water stones and other sharpening stones. Angle control Stable sharpening angle The guide attaches to the spine of the blade and helps keep the sharpening angle consistent throughout the process. Easy sharpening Beginner-friendly Helps users achieve a straight and predictable cutting edge without constantly controlling the angle by hand. Stone contact Ceramic contact surface The ceramic contact surface glides over the sharpening stone while maintaining a fixed blade position. How it works Fixed height above the stone The guide raises the back of the knife above the stone surface, creating a stable sharpening angle. The exact angle depends on the blade width, but remains consistent throughout each sharpening pass. How to use • Attach the guide to the spine of the blade. • Place the knife on the sharpening stone. • Keep the guide in contact with the stone surface. • Move the blade evenly across the stone. Important Recommended for kitchen knives with blade height greater than 3/4" (≈19 mm). For narrow blades, such as folding or fillet knives, the resulting sharpening angle may be too steep. Specifications Recommended blade height >3/4" (≈19 mm) Body material Plastic Contact surface Ceramic Use Manual sharpening Country of origin Japan .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 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} }
