{"product_id":"flap-wheel-cylinder-3mm-shank","title":"Cylinder Sanding Rod Bits 3mm Shank – 6\/8\/10mm Head for Rotary Tools, Inner Hole \u0026 Concave Surface Grinding","description":"\u003cstyle\u003e\n  \/* ==================== 产品描述样式 - 前缀 gbs-sand-rod 避免全局污染 ==================== *\/\n  .gbs-sand-rod {\n    color: #333;\n    line-height: 1.6;\n    font-size: 16px;\n    word-wrap: break-word;\n  }\n  \/* 主标题 h2 样式 *\/\n  .gbs-sand-rod h2 {\n    margin: 30px 0 14px;\n    font-size: 1.3rem;\n    font-weight: 600;\n    color: #1a1a1a;\n    border-bottom: 2px solid #f0f0f0;\n    padding-bottom: 8px;\n  }\n  \/* FAQ 问题使用 h3 *\/\n  .gbs-sand-rod h3.gbs-faq-question {\n    font-size: 1.05rem;\n    font-weight: 600;\n    color: #1a1a1a;\n    margin: 0 0 6px 0;\n    padding: 0;\n    border: none;\n  }\n  .gbs-sand-rod p {\n    margin: 0 0 14px;\n  }\n  .gbs-overview-text {\n    font-size: 1rem;\n    background: #f9f9f9;\n    padding: 16px 18px;\n    border-left: 4px solid #e6842d;\n    border-radius: 4px;\n  }\n  \/* 产品特点列表 *\/\n  .gbs-features-list {\n    list-style: none;\n    padding: 0;\n    margin: 0 0 18px;\n    display: flex;\n    flex-direction: column;\n    gap: 12px;\n  }\n  .gbs-feature-item {\n    display: flex;\n    align-items: flex-start;\n    gap: 10px;\n    padding: 8px 0;\n    border-bottom: 1px dashed #e0e0e0;\n  }\n  .gbs-feature-item::before {\n    content: \"✓\";\n    display: inline-block;\n    color: #e6842d;\n    font-weight: bold;\n    font-size: 1.1rem;\n    margin-top: 2px;\n    flex-shrink: 0;\n  }\n  \/* 规格表格容器 *\/\n  .gbs-specs-table-wrapper {\n    overflow-x: auto;\n    margin: 10px 0 20px;\n  }\n  .gbs-specs-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.95rem;\n    min-width: 320px;\n  }\n  .gbs-specs-table td {\n    padding: 10px 14px;\n    border: 1px solid #ddd;\n    vertical-align: top;\n  }\n  .gbs-specs-table td:first-child {\n    background-color: #f7f7f7;\n    font-weight: 600;\n    width: 40%;\n    white-space: nowrap;\n  }\n  \/* FAQ 区块 *\/\n  .gbs-faq-item {\n    margin-bottom: 18px;\n    padding: 10px 14px;\n    background: #fdfdfd;\n    border: 1px solid #eee;\n    border-radius: 4px;\n  }\n  .gbs-faq-answer {\n    color: #555;\n    margin-bottom: 0;\n  }\n  \/* 移动端适配 *\/\n  @media (max-width: 600px) {\n    .gbs-sand-rod {\n      font-size: 15px;\n    }\n    .gbs-sand-rod h2 {\n      font-size: 1.2rem;\n      margin-top: 24px;\n    }\n    .gbs-sand-rod h3.gbs-faq-question {\n      font-size: 1rem;\n    }\n    .gbs-overview-text {\n      padding: 12px 14px;\n    }\n    .gbs-specs-table td {\n      padding: 8px 10px;\n      font-size: 0.9rem;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"gbs-sand-rod\"\u003e\n\u003c!-- 产品概述区域 --\u003e\n\u003ch2\u003e📦 Product Overview – 3mm Shank Cylinder Sanding Rod Bits\u003c\/h2\u003e\n\u003cp class=\"gbs-overview-text\"\u003eReach the spots that normal discs and pads can't touch with these cylinder-shaped sandpaper rods. Designed specifically for inner holes, concave curves, and irregularly shaped workpieces, they make short work of deburring, smoothing, and polishing on a wide range of materials. Whether you're a hobbyist cleaning up a 3D printed part, a jeweler refining a ring's inner shank, or a woodworker evening out a tight recess, these 3mm shank bits fit right into your Dremel or rotary tool and turn a tedious hand-sanding chore into a fast, controlled machine operation. The rigid cylindrical form holds its shape while the abrasive surface wears evenly, giving you a consistent finish every time.\u003c\/p\u003e\n\u003c!-- 产品特点区域 --\u003e\n\u003ch2\u003e✨ Key Features of 3mm Shank Cylinder Sanding Rods\u003c\/h2\u003e\n\u003cul class=\"gbs-features-list\"\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eCylindrical Design for Internal Surfaces:\u003c\/strong\u003e Unlike flap wheels, these solid rods maintain their diameter while sanding inner bores and recesses, ensuring even contact.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eThree Diameter Options (6\/8\/10mm):\u003c\/strong\u003e Choose 6mm for small holes and fine jewelry work, 8mm for general cavities, and 10mm for larger openings and concave areas.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eUniversal 3mm Shank:\u003c\/strong\u003e Fits standard Dremel collets, flex shafts, and any rotary tool with a 3mm chuck—no adapter needed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eHigh-Quality Abrasive Cloth:\u003c\/strong\u003e Evenly coated sandpaper bonded to a rigid core resists peeling and delivers a uniform scratch pattern across metals, wood, and plastics.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eDry Sanding Ready:\u003c\/strong\u003e No pre-soak required. Simply mount, set your speed, and begin working. For best results, use moderate pressure and let the tool do the work.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eBroad Material Compatibility:\u003c\/strong\u003e Effective on stainless steel, copper, aluminum, iron, plastic, bamboo, and wood—ideal for mixed-material projects.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- 规格参数表格 --\u003e\n\u003ch2\u003e📏 Specifications – Sandpaper Cylinder Rod Bits\u003c\/h2\u003e\n\u003cdiv class=\"gbs-specs-table-wrapper\"\u003e\n\u003ctable class=\"gbs-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eSandpaper Rod \/ Cylinder Sanding Bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Diameter\u003c\/td\u003e\n\u003ctd\u003e3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Diameter Options\u003c\/td\u003e\n\u003ctd\u003e6 mm \/ 8 mm \/ 10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAbrasive Type\u003c\/td\u003e\n\u003ctd\u003eSandpaper bonded to a rigid core\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eInner holes, concave surfaces, irregular shapes, deburring, and polishing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Materials\u003c\/td\u003e\n\u003ctd\u003eStainless steel, copper, iron, aluminum, plastic, bamboo, wood, non-metals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Tools\u003c\/td\u003e\n\u003ctd\u003eRotary tools with 3mm collet (Dremel, Wen, flex shafts, pendant motors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Includes\u003c\/td\u003e\n\u003ctd\u003e1 x sandpaper rod (select diameter; multi-piece options available)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- 常见问题区域（全部展开） --\u003e\n\u003ch2\u003e❓ Frequently Asked Questions – Sandpaper Cylinder Rods for Rotary Tools\u003c\/h2\u003e\n\u003cdiv class=\"gbs-faq-item\"\u003e\n\u003ch3 class=\"gbs-faq-question\"\u003eQ: Are these the same as flap wheels, or exactly what is a “sandpaper rod”?\u003c\/h3\u003e\n\u003cp class=\"gbs-faq-answer\"\u003eA: These are solid cylindrical sanding bits, often called sandpaper rods. Unlike flap wheels, they have a firm core that won't change shape under pressure, making them perfect for sanding the inside of holes and concave areas where a flap wheel might deform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gbs-faq-item\"\u003e\n\u003ch3 class=\"gbs-faq-question\"\u003eQ: Will the 3mm shank fit my Dremel 4300 or 8220?\u003c\/h3\u003e\n\u003cp class=\"gbs-faq-answer\"\u003eA: Yes, absolutely. Any Dremel rotary tool that uses the standard 3mm collet (which most do) will securely grip this shank. It also works with generic rotary tools that have a 3mm chuck.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gbs-faq-item\"\u003e\n\u003ch3 class=\"gbs-faq-question\"\u003eQ: Do I need to soak these rods before using them, like some other abrasive bits?\u003c\/h3\u003e\n\u003cp class=\"gbs-faq-answer\"\u003eA: No soaking is needed. They are ready to use dry. Applying excessive water or coolant may loosen the sandpaper bond, so keep the rod and your workpiece dry for the longest life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gbs-faq-item\"\u003e\n\u003ch3 class=\"gbs-faq-question\"\u003eQ: How do I choose between 6mm, 8mm, and 10mm diameters?\u003c\/h3\u003e\n\u003cp class=\"gbs-faq-answer\"\u003eA: Measure the hole or curve you need to sand. The rod should be slightly smaller than the opening so it can move freely. For jewelry or small bores, 6mm is ideal. For larger automotive or woodworking cavities, 10mm covers an area faster. An 8mm rod is a great all-purpose middle ground.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gbs-faq-item\"\u003e\n\u003ch3 class=\"gbs-faq-question\"\u003eQ: Can I use this on soft metals like aluminum without loading up the abrasive?\u003c\/h3\u003e\n\u003cp class=\"gbs-faq-answer\"\u003eA: Yes, but use a lower RPM and light pressure. Aluminum can sometimes clog the sandpaper. If loading occurs, a quick brush with a stiff nylon pad will clean the surface and restore cutting performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"3 x 6 mm \/ 1 Pcs","offer_id":52210881331474,"sku":"GYZXKGDZHCL02024x1","price":1.35,"currency_code":"USD","in_stock":true},{"title":"3 x 8 mm \/ 1 Pcs","offer_id":52210881364242,"sku":"GYZXKGDZHCL02025x1","price":1.35,"currency_code":"USD","in_stock":true},{"title":"3 x 10 mm \/ 1 Pcs","offer_id":52210881397010,"sku":"GYZXKGDZHCL02026x1","price":1.35,"currency_code":"USD","in_stock":true},{"title":"3 x 6 mm \/ 5 Pcs","offer_id":52210881429778,"sku":"GYZXKGDZHCL02024x5","price":3.33,"currency_code":"USD","in_stock":true},{"title":"3 x 8 mm \/ 5 Pcs","offer_id":52210881462546,"sku":"GYZXKGDZHCL02025x5","price":3.39,"currency_code":"USD","in_stock":true},{"title":"3 x 10 mm \/ 5 Pcs","offer_id":52210881495314,"sku":"GYZXKGDZHCL02026x5","price":3.39,"currency_code":"USD","in_stock":true},{"title":"3 x 6 mm \/ 10 Pcs","offer_id":52210881528082,"sku":"GYZXKGDZHCL02024x10","price":5.97,"currency_code":"USD","in_stock":true},{"title":"3 x 8 mm \/ 10 Pcs","offer_id":52210881560850,"sku":"GYZXKGDZHCL02025x10","price":6.11,"currency_code":"USD","in_stock":true},{"title":"3 x 10 mm \/ 10 Pcs","offer_id":52210881593618,"sku":"GYZXKGDZHCL02026x10","price":6.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture5of5_7199603b-acc4-4948-9c3d-aae1881fa90d.jpg?v=1777019716","url":"https:\/\/homediyer.com\/products\/flap-wheel-cylinder-3mm-shank","provider":"HomeDIYer","version":"1.0","type":"link"}