{"product_id":"ring-spanner-wrench-metric-double-offset-high-carbon-steel","title":"Ring Spanner Wrench 5.5mm-41mm Metric Ring Deep Double Offset High-carbon steel","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eMetric Ring Spanner Wrench 5.5mm–41mm — Deep Double Offset for Tight-Space Fastening\u003c\/h2\u003e\n\u003cp\u003eWhen a standard open-end wrench can't reach a recessed bolt or a crowded engine bay leaves no room to swing, DIYers and mechanics alike need a tool that works with the geometry of the job. These metric ring spanner wrenches are built for exactly those situations — delivering full 360° ring engagement on fasteners that would otherwise strip under a poorly fitting tool.\u003c\/p\u003e\n\u003cp\u003eEach wrench is forged from high-carbon steel and features a deep double-offset ring head. The offset angle (typically 15°) lifts your knuckles clear of the work surface while the deep ring profile seats fully on metric hex fasteners. Available in 19 size ranges from 5.5mm–7mm up to 36mm–41mm (approximately 0.22\"–1.61\"), with pack options of 1, 2, or 5 pieces to match your project scale.\u003c\/p\u003e\n\u003cp\u003eThese ring spanners are well suited for automotive brake caliper bolts, suspension components, and engine ancillaries; machinery maintenance on conveyor frames and hydraulic fittings; and general DIY structural assembly where a metric ring wrench with double offset provides the clearance a flat wrench cannot.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔧\u003c\/span\u003e Compatible with standard metric hex fasteners (DIN 838 \/ ISO 1085 profile). Fits bolt heads and nuts within each listed size range. Not intended for SAE\/imperial fasteners.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Metric Ring Spanner Wrenches\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep Double-Offset Ring Head\u003c\/strong\u003e — The offset angle raises your hand above the work surface, reducing knuckle contact and improving torque leverage in recessed or obstructed locations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Carbon Steel Construction\u003c\/strong\u003e — Forged from high-carbon steel for resistance to deformation under sustained torque loads, maintaining dimensional accuracy across repeated use cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull 360° Ring Engagement\u003c\/strong\u003e — The closed ring profile distributes load evenly around the fastener hex, significantly reducing the risk of rounding compared to open-end designs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Metric Size Coverage\u003c\/strong\u003e — 19 size ranges from 5.5mm–7mm to 36mm–41mm cover the majority of metric fasteners found in automotive, industrial, and home workshop applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e — Available in 1, 2, or 5-piece packs, allowing you to stock a single size for a specific job or build out a multi-size set cost-effectively.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth Polished Finish\u003c\/strong\u003e — The polished ring and shank surface resists surface corrosion during storage and makes the tool easier to clean after use in greasy or oily environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Metric Ring Spanner Wrench\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eDouble Offset Ring Spanner Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive \/ Engagement Type\u003c\/th\u003e\n\u003ctd\u003eClosed ring (12-point or 6-point, see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHigh-carbon steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003ePolished chrome-like surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003ctd\u003eDeep double offset ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOffset Angle\u003c\/th\u003e\n\u003ctd\u003eTypically 15° (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e5.5mm–41mm (approx. 0.22\"–1.61\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Sizes\u003c\/th\u003e\n\u003ctd\u003e5.5–7 \/ 8–10 \/ 9–11 \/ 10–12 \/ 12–14 \/ 13–15 \/ 13–16 \/ 14–17 \/ 16–18 \/ 17–19 \/ 18–21 \/ 19–22 \/ 22–24 \/ 24–27 \/ 27–30 \/ 30–32 \/ 32–34 \/ 34–36 \/ 36–41 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantity Options\u003c\/th\u003e\n\u003ctd\u003e1 Pc \/ 2 Pcs \/ 5 Pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandard Compatibility\u003c\/th\u003e\n\u003ctd\u003eMetric hex fasteners (DIN 838 \/ ISO 1085)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (per piece)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Compliance\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\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 ring spanner for my bolt?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure across the flats of the bolt head or nut with a caliper or ruler — this is the wrench size you need. Each variant lists a size range (e.g., 10mm–12mm), meaning the wrench fits both the smaller and larger end. If your bolt measures 11mm across the flats, select the 10mm–12mm variant. When in doubt, size down rather than up to avoid slippage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does \"double offset\" mean and why does it matter?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA double offset ring wrench has its ring head angled away from the handle plane — typically by 15° — on both the vertical and horizontal axis. This lifts your hand and knuckles above the work surface when turning, which is critical when working in tight engine bays, under vehicles, or on machinery where a flat wrench would scrape your hand on surrounding components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs high-carbon steel strong enough for heavy-duty torque applications?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eHigh-carbon steel offers good hardness and resistance to deformation, making it suitable for most automotive and general mechanical fastening tasks. For extreme torque applications (e.g., large suspension bolts or industrial flanges), always use a torque wrench to avoid exceeding the tool's rated capacity. If you need to confirm the specific tensile rating for a particular size, contact us.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill these wrenches rust if stored in a damp garage?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe polished finish provides a degree of surface corrosion resistance, but no bare steel tool is fully rustproof in persistently damp conditions. We recommend wiping the wrench with a light machine oil after use and storing it in a dry toolbox or roll. Avoid leaving it in contact with wet surfaces for extended periods.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these on SAE (imperial) fasteners?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese wrenches are sized in metric (mm) and are designed for metric hex fasteners. While some metric sizes are close to SAE equivalents (e.g., 13mm is near 1\/2\"), using a metric wrench on an imperial fastener — or vice versa — risks rounding the fastener corners. For SAE fasteners, use a wrench sized in inches.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eShould I buy 1, 2, or 5 pieces?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eChoose 1 piece if you need a specific size for a single repair job. Choose 2 pieces if you frequently work on tasks requiring the same size at two points simultaneously (e.g., bolt-and-nut tightening without a second person). Choose 5 pieces if you're stocking a workshop, running a small repair business, or want backup tools for a size you use regularly — the per-unit cost is lower at higher quantities.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the \"deep\" ring profile and when is it needed?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA deep ring profile means the ring opening has greater depth (height) than a standard ring wrench, allowing it to seat fully on fasteners that sit slightly proud of a surface or have a longer hex section. This is particularly useful on socket-head cap screws, thick flange nuts, and fasteners with extended hex profiles common in machinery and automotive suspension systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e\n\u003cp\u003e🛒 Select your Size and Pack Quantity above, then add to cart.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"5.5mm - 7mm \/ 1Pcs","offer_id":52378060685586,"sku":"GYLJJGLBZSJ040034x1","price":3.44,"currency_code":"USD","in_stock":true},{"title":"8mm - 10mm \/ 1Pcs","offer_id":52378060718354,"sku":"GYLJJGLBZSJ040035x1","price":4.27,"currency_code":"USD","in_stock":true},{"title":"9mm - 11mm \/ 1Pcs","offer_id":52378060751122,"sku":"GYLJJGLBZSJ040036x1","price":5.48,"currency_code":"USD","in_stock":true},{"title":"10mm - 12mm \/ 1Pcs","offer_id":52378060783890,"sku":"GYLJJGLBZSJ040037x1","price":5.81,"currency_code":"USD","in_stock":true},{"title":"12mm - 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