{"product_id":"ratchet-ring-spanner-set-6mm-27mm-72-tooth-crv-wrench","title":"Ratchet Ring Spanner Set Double End 6mm-27mm 72 Tooth Wrench CrV Steel Polished","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eRatchet Ring Spanner Set — Double-End 72-Tooth CrV Wrench for Tight-Space Fastening\u003c\/h2\u003e\n\u003cp\u003eWhen you're working in a cramped engine bay or under a chassis and a standard open-end wrench just won't swing far enough, you need a ratchet ring spanner that keeps moving without breaking contact. This double-end ratchet ring spanner set is built for mechanics, automotive technicians, and serious DIYers who can't afford to lose grip mid-job.\u003c\/p\u003e\n\u003cp\u003eEach spanner features a double-ended ring design with a 72-tooth ratchet mechanism, machined from Chrome Vanadium (CrV) steel and finished with a mirror-polished chrome surface. Sizes span 6mm through 27mm (approximately 0.24\" to 1.06\"), available as individual pieces or as a 7-piece set (6–19mm). The slim ring profile fits over recessed fasteners where box-end wrenches can't reach.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include automotive bolt removal in confined spaces, bicycle and motorcycle maintenance requiring precise torque control, and general workshop assembly where a ratchet ring spanner for tight spaces outperforms a standard combination wrench. The 72-tooth mechanism requires only a 5° arc swing — ideal for ratchet wrench use in restricted access areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔧\u003c\/span\u003e \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits standard metric hex fasteners (M6–M27 range). Suitable for automotive, bicycle, motorcycle, and general mechanical applications. Not intended for torque wrench replacement or impact use.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Ratchet Ring Spanners\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003e72-Tooth Ratchet Mechanism\u003c\/strong\u003e — Requires only a 5° arc swing per click, letting you work in spaces where a full-swing wrench cannot operate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eDouble-End Ring Design\u003c\/strong\u003e — Each spanner covers two adjacent metric sizes in a single tool, reducing the number of pieces you need to carry on the job.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e \u003cstrong\u003eChrome Vanadium (CrV) Steel Construction\u003c\/strong\u003e — CrV alloy provides a tensile strength suitable for sustained torque loads without deforming under normal fastening conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✨\u003c\/span\u003e \u003cstrong\u003eMirror-Polished Chrome Finish\u003c\/strong\u003e — The polished surface resists surface oxidation and makes it easier to wipe clean after use in oily or greasy environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003eWide Size Range: 6mm–27mm\u003c\/strong\u003e — Covers the most common metric fastener sizes found in automotive, appliance, and general mechanical work, available individually or as a 7-piece set.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e \u003cstrong\u003eSlim Ring Profile for Recessed Fasteners\u003c\/strong\u003e — The low-profile ring head fits over bolt heads seated in counterbored holes or flanged surfaces where open-end wrenches cannot engage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Ratchet Ring Spanner Set\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eDouble-End Ratchet Ring Spanner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eChrome Vanadium (CrV) Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eMirror-Polished Chrome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRatchet Tooth Count\u003c\/th\u003e\n\u003ctd\u003e72 Teeth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum Arc Swing\u003c\/th\u003e\n\u003ctd\u003e5°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e6mm – 27mm (approx. 0.24\" – 1.06\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive Type\u003c\/th\u003e\n\u003ctd\u003eRing (Box-End Ratchet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEnd Configuration\u003c\/th\u003e\n\u003ctd\u003eDouble-End (two sizes per spanner)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Pack Options\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSet Option\u003c\/th\u003e\n\u003ctd\u003e7-piece set (6–19mm) available\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right size ratchet ring spanner for my fastener?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the across-flats (AF) width of the bolt head or nut using a caliper or a known reference wrench. Match that measurement to the corresponding spanner size. For example, a standard M10 bolt typically uses a 17mm wrench. Each double-end spanner in this set covers two adjacent sizes, so one tool handles both a 10mm and a 12mm fastener.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the advantage of a 72-tooth ratchet over a lower tooth count?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA higher tooth count means a smaller arc swing is needed to advance the ratchet by one click. A 72-tooth mechanism requires approximately 5° of rotation per click, compared to 15°–30° on lower-count ratchets. This is critical when working in tight spaces — such as inside an engine bay — where you can only move the wrench a few degrees before hitting an obstruction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs CrV steel strong enough for heavy-duty fastening tasks?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eChrome Vanadium steel is a standard alloy used in professional-grade hand tools. It offers a good balance of tensile strength, toughness, and resistance to fatigue under repeated loading. These spanners are suitable for typical automotive and mechanical fastening tasks. They are not designed as torque wrench substitutes for precision torque-critical applications, nor for use with impact drivers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill the polished chrome finish protect against rust and corrosion?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe mirror-polished chrome surface provides a degree of protection against surface oxidation and makes the tool easier to clean after exposure to oil, grease, or moisture. For long-term storage, wiping the spanners with a light machine oil after use is recommended, particularly in humid workshop environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these spanners compatible with both metric and imperial fasteners?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese spanners are sized in metric (mm) and are designed for metric fasteners. While some metric sizes are close in dimension to certain SAE (imperial) sizes, they are not interchangeable — using a metric wrench on an imperial fastener (or vice versa) risks rounding the fastener corners. For imperial fasteners, a dedicated SAE set is recommended.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eShould I buy individual spanners or the 7-piece set?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eIf you regularly work on a specific vehicle or machine and know which fastener sizes you encounter most often, individual spanners let you target exactly what you need. The 7-piece set (6–19mm) is a better choice if you want broad coverage for general automotive or workshop use without selecting sizes one by one. The set covers the most common metric fastener sizes found in passenger vehicles and light machinery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these ratchet ring spanners with an extension bar or torque wrench?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eNo. These are hand-operated ratchet ring spanners and do not have a square drive socket interface. They cannot be attached to a torque wrench or extension bar. For torque-critical fastening, use a calibrated torque wrench with the appropriate socket. These spanners are intended for manual hand-tightening and loosening tasks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your Size and Pack Quantity above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"6mm - 8mm \/ 1Pcs","offer_id":52378062487826,"sku":"GYLJJGLBZSJ040129x1","price":4.64,"currency_code":"USD","in_stock":true},{"title":"8mm - 9mm \/ 1Pcs","offer_id":52378062520594,"sku":"GYLJJGLBZSJ040121x1","price":5.79,"currency_code":"USD","in_stock":true},{"title":"8mm - 10mm \/ 1Pcs","offer_id":52378062553362,"sku":"GYLJJGLBZSJ040122x1","price":5.97,"currency_code":"USD","in_stock":true},{"title":"9mm - 11mm \/ 1Pcs","offer_id":52378062586130,"sku":"GYLJJGLBZSJ040130x1","price":6.94,"currency_code":"USD","in_stock":true},{"title":"10mm - 12mm \/ 1Pcs","offer_id":52378062618898,"sku":"GYLJJGLBZSJ040131x1","price":7.71,"currency_code":"USD","in_stock":true},{"title":"12mm - 13mm \/ 1Pcs","offer_id":52378062651666,"sku":"GYLJJGLBZSJ040123x1","price":8.36,"currency_code":"USD","in_stock":true},{"title":"12mm - 14mm \/ 1Pcs","offer_id":52378062684434,"sku":"GYLJJGLBZSJ040132x1","price":8.94,"currency_code":"USD","in_stock":true},{"title":"13mm - 15mm \/ 1Pcs","offer_id":52378062717202,"sku":"GYLJJGLBZSJ040133x1","price":9.26,"currency_code":"USD","in_stock":true},{"title":"14mm - 15mm \/ 1Pcs","offer_id":52378062749970,"sku":"GYLJJGLBZSJ040124x1","price":9.64,"currency_code":"USD","in_stock":true},{"title":"16mm - 17mm \/ 1Pcs","offer_id":52378062782738,"sku":"GYLJJGLBZSJ040125x1","price":11.46,"currency_code":"USD","in_stock":true},{"title":"17mm - 19mm \/ 1Pcs","offer_id":52378062815506,"sku":"GYLJJGLBZSJ040126x1","price":12.85,"currency_code":"USD","in_stock":true},{"title":"18mm - 19mm \/ 1Pcs","offer_id":52378062848274,"sku":"GYLJJGLBZSJ040127x1","price":14.06,"currency_code":"USD","in_stock":true},{"title":"14mm - 17mm \/ 1Pcs","offer_id":52378062881042,"sku":"GYLJJGLBZSJ040128x1","price":10.89,"currency_code":"USD","in_stock":true},{"title":"16mm - 18mm \/ 1Pcs","offer_id":52378062913810,"sku":"GYLJJGLBZSJ040134x1","price":12.63,"currency_code":"USD","in_stock":true},{"title":"19mm - 22mm \/ 1Pcs","offer_id":52378062946578,"sku":"GYLJJGLBZSJ040135x1","price":16.89,"currency_code":"USD","in_stock":true},{"title":"22mm - 24mm \/ 1Pcs","offer_id":52378062979346,"sku":"GYLJJGLBZSJ040136x1","price":20.03,"currency_code":"USD","in_stock":true},{"title":"24mm - 27mm \/ 1Pcs","offer_id":52378063012114,"sku":"GYLJJGLBZSJ040137x1","price":24.1,"currency_code":"USD","in_stock":true},{"title":"7pcs 6-19mm \/ 1set","offer_id":52378063044882,"sku":"GYLJJGLBZSJ040139x1","price":54.13,"currency_code":"USD","in_stock":true},{"title":"6mm - 8mm \/ 2Pcs","offer_id":52378063077650,"sku":"GYLJJGLBZSJ040129x2","price":8.96,"currency_code":"USD","in_stock":true},{"title":"8mm - 9mm \/ 2Pcs","offer_id":52378063110418,"sku":"GYLJJGLBZSJ040121x2","price":10.83,"currency_code":"USD","in_stock":true},{"title":"8mm - 10mm \/ 2Pcs","offer_id":52378063143186,"sku":"GYLJJGLBZSJ040122x2","price":11.18,"currency_code":"USD","in_stock":true},{"title":"9mm - 11mm \/ 2Pcs","offer_id":52378063175954,"sku":"GYLJJGLBZSJ040130x2","price":13.11,"currency_code":"USD","in_stock":true},{"title":"10mm - 12mm \/ 2Pcs","offer_id":52378063208722,"sku":"GYLJJGLBZSJ040131x2","price":14.63,"currency_code":"USD","in_stock":true},{"title":"12mm - 13mm \/ 2Pcs","offer_id":52378063241490,"sku":"GYLJJGLBZSJ040123x2","price":15.97,"currency_code":"USD","in_stock":true},{"title":"12mm - 14mm \/ 2Pcs","offer_id":52378063274258,"sku":"GYLJJGLBZSJ040132x2","price":17.11,"currency_code":"USD","in_stock":true},{"title":"13mm - 15mm \/ 2Pcs","offer_id":52378063307026,"sku":"GYLJJGLBZSJ040133x2","price":17.75,"currency_code":"USD","in_stock":true},{"title":"14mm - 15mm \/ 2Pcs","offer_id":52378063339794,"sku":"GYLJJGLBZSJ040124x2","price":18.51,"currency_code":"USD","in_stock":true},{"title":"16mm - 17mm \/ 2Pcs","offer_id":52378063372562,"sku":"GYLJJGLBZSJ040125x2","price":22.11,"currency_code":"USD","in_stock":true},{"title":"17mm - 19mm \/ 2Pcs","offer_id":52378063405330,"sku":"GYLJJGLBZSJ040126x2","price":24.92,"currency_code":"USD","in_stock":true},{"title":"18mm - 19mm \/ 2Pcs","offer_id":52378063438098,"sku":"GYLJJGLBZSJ040127x2","price":27.35,"currency_code":"USD","in_stock":true},{"title":"14mm - 17mm \/ 2Pcs","offer_id":52378063470866,"sku":"GYLJJGLBZSJ040128x2","price":20.93,"currency_code":"USD","in_stock":true},{"title":"16mm - 18mm \/ 2Pcs","offer_id":52378063503634,"sku":"GYLJJGLBZSJ040134x2","price":24.51,"currency_code":"USD","in_stock":true},{"title":"19mm - 22mm \/ 2Pcs","offer_id":52378063536402,"sku":"GYLJJGLBZSJ040135x2","price":32.95,"currency_code":"USD","in_stock":true},{"title":"22mm - 24mm \/ 2Pcs","offer_id":52378063569170,"sku":"GYLJJGLBZSJ040136x2","price":39.24,"currency_code":"USD","in_stock":true},{"title":"24mm - 27mm \/ 2Pcs","offer_id":52378063601938,"sku":"GYLJJGLBZSJ040137x2","price":47.41,"currency_code":"USD","in_stock":true},{"title":"7pcs 6-19mm \/ 2set","offer_id":52378063634706,"sku":"GYLJJGLBZSJ040139x2","price":107.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture3of6_73648f50-3855-4143-a7af-2d1db0573c13.jpg?v=1781700608","url":"https:\/\/homediyer.com\/de\/products\/ratchet-ring-spanner-set-6mm-27mm-72-tooth-crv-wrench","provider":"HomeDIYer","version":"1.0","type":"link"}