{"product_id":"open-end-wrenches-double-head-spanner-wrench-spanners-size-6-7mm-to-41-46mm","title":"Open End Wrenches Double Head Spanner Wrench Spanners Size: 6-7mm to  41-46mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003eOpen End Spanner Wrenches — Double Head Coverage from 6 mm to 46 mm\u003c\/h2\u003e\n    \u003cp\u003eWhen a bolt is buried in a tight engine bay or a plumbing fitting refuses to budge, reaching for the wrong wrench size costs time and strips fasteners. These open end spanner wrenches give mechanics, plumbers, and serious DIYers a reliable double-head tool that covers two adjacent metric sizes in a single piece — so you spend less time hunting through a toolbox and more time getting the job done.\u003c\/p\u003e\n    \u003cp\u003eEach wrench is forged from drop-forged carbon steel with a chrome-vanadium alloy finish that resists corrosion and surface wear. The double-head design places two open-end jaws at opposing angles (typically 15°), letting you flip the wrench for a fresh bite angle in confined spaces. Available in 21 size combinations spanning 6–7 mm (approx. ¼–9\/32 in) up to 41–46 mm (approx. 1-5\/8–1-13\/16 in), with jaw openings matched to standard metric fastener dimensions.\u003c\/p\u003e\n    \u003cp\u003eReach for these open end spanners when torquing cylinder head bolts on a small engine, tightening compression fittings on copper pipe, adjusting suspension components on a bicycle or motorcycle, or assembling flat-pack furniture with metric hardware. The slim jaw profile slides onto hex fasteners even where a box-end wrench cannot fit.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003e🔧\u003c\/span\u003e\n    \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits standard metric hex-head bolts, nuts, and fittings. Size range 6–7 mm to 41–46 mm. Verify your fastener size before selecting a variant.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-features\"\u003e\n    \u003ch2\u003e✅ Key Features of These Open End Spanner Wrenches\u003c\/h2\u003e\n    \u003cul class=\"hdiy-list\"\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003eDouble-Head Design\u003c\/strong\u003e — Each wrench covers two metric sizes, reducing the number of tools needed for a job and speeding up fastener access in tight spaces.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eWide Size Range\u003c\/strong\u003e — 21 size combinations from 6–7 mm to 41–46 mm cover the majority of metric fasteners found in automotive, plumbing, and machinery applications.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e \u003cstrong\u003eCorrosion-Resistant Finish\u003c\/strong\u003e — Chrome-vanadium alloy surface treatment resists rust and oxidation, keeping jaw faces smooth and dimensionally accurate over repeated use.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003eAngled Jaw Offset\u003c\/strong\u003e — Opposing jaw angles (typically 15°) allow the wrench to be flipped for a new grip arc without repositioning your hand, useful in low-clearance environments.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e💪\u003c\/span\u003e \u003cstrong\u003eDrop-Forged Construction\u003c\/strong\u003e — Forged steel body withstands the torque demands of stubborn fasteners without flexing or cracking under load.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🧰\u003c\/span\u003e \u003cstrong\u003eSlim Open-End Profile\u003c\/strong\u003e — The open jaw slides onto fastener flats from the side, making it accessible in locations where a closed ring spanner cannot engage.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ch2\u003e📐 Technical Specifications — Open End Spanner Wrenches\u003c\/h2\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eDouble-Head Open End Spanner Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e6–7 mm to 41–46 mm (approx. ¼ in to 1-13\/16 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eNumber of Size Options\u003c\/th\u003e\n\u003ctd\u003e21 combinations\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eDrop-forged carbon steel with chrome-vanadium alloy finish\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eJaw Type\u003c\/th\u003e\n\u003ctd\u003eOpen end, double-head\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eJaw Angle Offset\u003c\/th\u003e\n\u003ctd\u003eTypically 15° per head\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eMetric\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eChrome-vanadium polished\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePacking Quantity\u003c\/th\u003e\n\u003ctd\u003e1 piece per order\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\n  \u003cdiv class=\"hdiy-faq\"\u003e\n    \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right size wrench for my fastener?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMeasure the distance across the flats of your bolt head or nut with a caliper or ruler. Match that measurement in millimeters to the corresponding jaw opening listed in the size option. For example, a fastener measuring 13 mm across the flats needs the 12–14 mm wrench, which provides a snug fit on the 13 mm flat.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan these wrenches handle high-torque applications like automotive work?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The drop-forged construction is designed to handle the torque loads typical of automotive fasteners such as suspension bolts, exhaust clamps, and engine fittings. For extremely high-torque applications (e.g., axle nuts), a torque wrench with a socket is generally the safer choice to avoid overloading any open-end spanner.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these wrenches rust-resistant for outdoor or wet environments?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe chrome-vanadium alloy finish provides meaningful corrosion resistance for typical workshop and outdoor use. For prolonged exposure to moisture or salt environments, wipe the wrench dry after use and apply a light coat of tool oil to the jaw faces and body to extend service life.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the difference between the overlapping size ranges (e.g., 13–15 mm vs. 13–16 mm)?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eBoth wrenches share a 13 mm jaw on one end, but differ on the second head: the 13–15 mm wrench pairs 13 mm with 15 mm, while the 13–16 mm wrench pairs 13 mm with 16 mm. Choose based on which second size you need most frequently. If you regularly work with both 15 mm and 16 mm fasteners, consider purchasing both.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWill these fit both bolts and nuts of the same nominal size?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Open-end spanners engage the flat-to-flat dimension of any hex fastener — bolt heads and nuts of the same metric size share the same across-flats measurement, so a single wrench fits both the bolt head and its matching nut.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow does the double-head design help in tight spaces?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eEach head is set at an opposing angle (typically 15° from the handle axis). When you run out of swing arc in a confined area, flip the wrench to the other head — the different angle gives you a fresh grip position without needing to remove and reposition the tool. This is especially useful behind engine brackets or inside cabinet frames where full rotation is not possible.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs each size sold individually or as a set?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eEach listing is for 1 piece (1 pcs) of the selected size combination. Select the specific size you need from the variant options above. If you need multiple sizes, add each size to your cart separately.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your size above, then add to cart.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right size wrench for my fastener?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure the distance across the flats of your bolt head or nut with a caliper or ruler. Match that measurement in millimeters to the corresponding jaw opening listed in the size option.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these wrenches handle high-torque applications like automotive work?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The drop-forged construction is designed to handle the torque loads typical of automotive fasteners. For extremely high-torque applications, a torque wrench with a socket is generally the safer choice.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these wrenches rust-resistant for outdoor or wet environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The chrome-vanadium alloy finish provides meaningful corrosion resistance. For prolonged exposure to moisture or salt environments, wipe dry after use and apply a light coat of tool oil.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between the overlapping size ranges (e.g., 13–15 mm vs. 13–16 mm)?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Both wrenches share a 13 mm jaw on one end but differ on the second head. Choose based on which second size you need most frequently.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will these fit both bolts and nuts of the same nominal size?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Open-end spanners engage the flat-to-flat dimension of any hex fastener — bolt heads and nuts of the same metric size share the same across-flats measurement.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How does the double-head design help in tight spaces?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Each head is set at an opposing angle (typically 15°). When you run out of swing arc, flip the wrench to the other head for a fresh grip position without removing and repositioning the tool.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is each size sold individually or as a set?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Each listing is for 1 piece of the selected size combination. Select the specific size you need from the variant options above.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"6-7mm \/ 1pcs","offer_id":52378105118994,"sku":"LFLGDGZWJ0294x1","price":8.81,"currency_code":"USD","in_stock":true},{"title":"8-10mm \/ 1pcs","offer_id":52378105151762,"sku":"LFLGDGZWJ0295x1","price":9.83,"currency_code":"USD","in_stock":true},{"title":"9-11mm \/ 1pcs","offer_id":52378105184530,"sku":"LFLGDGZWJ0296x1","price":12.21,"currency_code":"USD","in_stock":true},{"title":"10-12mm \/ 1pcs","offer_id":52378105217298,"sku":"LFLGDGZWJ0297x1","price":12.55,"currency_code":"USD","in_stock":true},{"title":"12-14mm \/ 1pcs","offer_id":52378105250066,"sku":"LFLGDGZWJ0298x1","price":12.1,"currency_code":"USD","in_stock":true},{"title":"13-15mm \/ 1pcs","offer_id":52378105282834,"sku":"LFLGDGZWJ0299x1","price":13.03,"currency_code":"USD","in_stock":true},{"title":"13-16mm \/ 1pcs","offer_id":52378105315602,"sku":"LFLGDGZWJ0300x1","price":13.74,"currency_code":"USD","in_stock":true},{"title":"14-17mm \/ 1pcs","offer_id":52378105348370,"sku":"LFLGDGZWJ0301x1","price":15.91,"currency_code":"USD","in_stock":true},{"title":"16-18mm \/ 1pcs","offer_id":52378105381138,"sku":"LFLGDGZWJ0302x1","price":16.73,"currency_code":"USD","in_stock":true},{"title":"17-19mm \/ 1pcs","offer_id":52378105413906,"sku":"LFLGDGZWJ0303x1","price":19.28,"currency_code":"USD","in_stock":true},{"title":"18-21mm \/ 1pcs","offer_id":52378105446674,"sku":"LFLGDGZWJ0304x1","price":22.17,"currency_code":"USD","in_stock":true},{"title":"19-22mm \/ 1pcs","offer_id":52378105479442,"sku":"LFLGDGZWJ0305x1","price":25.54,"currency_code":"USD","in_stock":true},{"title":"22-24mm \/ 1pcs","offer_id":52378105512210,"sku":"LFLGDGZWJ0306x1","price":30.98,"currency_code":"USD","in_stock":true},{"title":"24-27mm \/ 1pcs","offer_id":52378105544978,"sku":"LFLGDGZWJ0307x1","price":40.23,"currency_code":"USD","in_stock":true},{"title":"27-30mm \/ 1pcs","offer_id":52378105577746,"sku":"LFLGDGZWJ0308x1","price":49.37,"currency_code":"USD","in_stock":true},{"title":"30-32mm \/ 1pcs","offer_id":52378105610514,"sku":"LFLGDGZWJ0309x1","price":59.54,"currency_code":"USD","in_stock":true},{"title":"32-34mm \/ 1pcs","offer_id":52378105643282,"sku":"LFLGDGZWJ0310x1","price":90.55,"currency_code":"USD","in_stock":true},{"title":"32-36mm \/ 1pcs","offer_id":52378105676050,"sku":"LFLGDGZWJ0311x1","price":104.69,"currency_code":"USD","in_stock":true},{"title":"34-36mm \/ 1pcs","offer_id":52378105708818,"sku":"LFLGDGZWJ0312x1","price":108.66,"currency_code":"USD","in_stock":true},{"title":"36-41mm \/ 1pcs","offer_id":52378105741586,"sku":"LFLGDGZWJ0313x1","price":135.05,"currency_code":"USD","in_stock":true},{"title":"41-46mm \/ 1pcs","offer_id":52378105774354,"sku":"LFLGDGZWJ0314x1","price":199.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-07_a2bfe3d3-fc9a-4453-86c3-78b4a7b2f4ae.jpg?v=1781786894","url":"https:\/\/homediyer.com\/de\/products\/open-end-wrenches-double-head-spanner-wrench-spanners-size-6-7mm-to-41-46mm","provider":"HomeDIYer","version":"1.0","type":"link"}