{"product_id":"spanner-combination-wrench-crv-open-ended-round-fixed-head-spanners-6mm-30mm","title":"Spanner Combination Wrench CRV Open Ended Round Fixed Head Spanners 6mm - 30mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eCRV Combination Spanner Wrench — Open Ended \u0026amp; Round Fixed Head, 6mm to 30mm\u003c\/h2\u003e\n\u003cp\u003eWhen a standard wrench slips or the wrong size stalls your repair mid-job, the frustration is real — especially for mechanics, maintenance technicians, and serious DIYers who need a reliable grip on every fastener. These CRV combination spanners are built to give you a secure, consistent bite whether you're working in a tight engine bay or assembling structural hardware.\u003c\/p\u003e\n\u003cp\u003eEach spanner is forged from Chrome Vanadium Steel (CRV) and features a dual-function design: one end is open-ended for fast nut engagement, while the opposite end has a round fixed head for torque-focused turns. Available in 21 individual sizes from 6mm (approximately 0.24 in) to 30mm (approximately 1.18 in), letting you match the exact fastener without improvising.\u003c\/p\u003e\n\u003cp\u003eThese combination spanners are well-suited for automotive maintenance such as brake caliper bolts and suspension components, plumbing fixture tightening, and general workshop or home repair tasks where metric fasteners are involved. The fixed-head design makes them a dependable choice for repetitive torque applications where a ratchet wrench may not fit.\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 fasteners (hex nuts and bolt heads). Size range 6mm–30mm. Verify your fastener size before ordering — each listing covers one individual size.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These CRV Combination Spanners\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eChrome Vanadium Steel Construction\u003c\/strong\u003e — CRV alloy provides resistance to deformation under load, maintaining shape through repeated use on stubborn fasteners.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e↔️\u003c\/span\u003e \u003cstrong\u003eDual-End Design\u003c\/strong\u003e — Open end for quick nut placement and removal; round fixed head for applying controlled torque in confined spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e \u003cstrong\u003e21 Individual Metric Sizes\u003c\/strong\u003e — Covers 6mm through 30mm (0.24 in–1.18 in), addressing the most common metric fastener dimensions in automotive and mechanical work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e \u003cstrong\u003eCorrosion-Resistant Finish\u003c\/strong\u003e — Surface treatment helps protect against rust and oxidation during storage and use in varied environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✋\u003c\/span\u003e \u003cstrong\u003eErgonomic Proportions\u003c\/strong\u003e — Wrench length scales with jaw size, providing appropriate leverage for each fastener diameter without over-torquing smaller hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e \u003cstrong\u003eFixed Head Accuracy\u003c\/strong\u003e — The round fixed head maintains consistent contact geometry, reducing the risk of rounding fastener corners compared to adjustable alternatives.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Combination Spanner Wrench\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eChrome Vanadium Steel (CRV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWrench Type\u003c\/th\u003e\n\u003ctd\u003eCombination Spanner (Open End + Round Fixed Head)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize Range\u003c\/th\u003e\n\u003ctd\u003e6mm – 30mm (approx. 0.24 in – 1.18 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Sizes\u003c\/th\u003e\n\u003ctd\u003e6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 27, 30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHead Style\u003c\/th\u003e\n\u003ctd\u003eOpen End (one side) \/ Round Fixed Head (opposite side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive System\u003c\/th\u003e\n\u003ctd\u003eNon-ratcheting fixed 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\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 Piece (individual size)\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\u003eWhich size should I choose for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the wrench size to the across-flats (AF) measurement of your nut or bolt head. For example, an M8 bolt typically uses a 13mm spanner, while an M10 bolt commonly requires a 17mm. Check your fastener's specification sheet or measure with calipers if unsure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does CRV mean and why does it matter?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eCRV stands for Chrome Vanadium Steel, an alloy that combines chromium for corrosion resistance and vanadium for added toughness and strength. This makes the wrench more resistant to bending or cracking under high torque compared to standard carbon steel tools.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this wrench suitable for automotive work?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. The size range of 6mm–30mm covers the majority of metric fasteners found in passenger vehicles, including brake calipers, suspension bolts, engine mounts, and exhaust hardware. The fixed head end is particularly useful in tight spaces where a ratchet cannot swing freely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow does the open end differ from the fixed round head?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe open end allows you to slide the wrench onto a fastener from the side — useful for quick engagement or when the bolt end is not accessible. The round fixed head fully encircles the nut, distributing force evenly across all six faces and reducing the chance of slipping or rounding the fastener under load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill this wrench rust if stored in a damp toolbox?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe CRV material and surface finish provide a degree of corrosion resistance, but prolonged exposure to moisture can still cause surface oxidation over time. Wiping the wrench with a light machine oil after use and storing it in a dry environment will extend its service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this wrench on SAE (imperial) fasteners?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese spanners are sized in metric (mm). While some metric sizes are close in dimension to SAE equivalents, using a metric wrench on an imperial fastener — or vice versa — risks rounding the fastener corners. For SAE fasteners, use a wrench sized in fractional inches.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eEach listing covers one size — how do I order multiple sizes?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eSelect your required size from the Size dropdown above and add it to your cart. Repeat the process for each additional size you need. Each size is sold individually (1 Pcs per order) so you can build a set tailored to your specific fastener requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your size above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"6mm \/ 1 Pcs","offer_id":52378074480914,"sku":"YMXLLQJD08462x1","price":7.06,"currency_code":"USD","in_stock":true},{"title":"7mm \/ 1 Pcs","offer_id":52378074513682,"sku":"YMXLLQJD08463x1","price":8.01,"currency_code":"USD","in_stock":true},{"title":"8mm \/ 1 Pcs","offer_id":52378074546450,"sku":"YMXLLQJD08464x1","price":8.77,"currency_code":"USD","in_stock":true},{"title":"9mm \/ 1 Pcs","offer_id":52378074579218,"sku":"YMXLLQJD08465x1","price":9.78,"currency_code":"USD","in_stock":true},{"title":"10mm \/ 1 Pcs","offer_id":52378074611986,"sku":"YMXLLQJD08466x1","price":10.32,"currency_code":"USD","in_stock":true},{"title":"11mm \/ 1 Pcs","offer_id":52378074644754,"sku":"YMXLLQJD08467x1","price":11.63,"currency_code":"USD","in_stock":true},{"title":"12mm \/ 1 Pcs","offer_id":52378074677522,"sku":"YMXLLQJD08468x1","price":12.91,"currency_code":"USD","in_stock":true},{"title":"13mm \/ 1 Pcs","offer_id":52378074710290,"sku":"YMXLLQJD08469x1","price":14.21,"currency_code":"USD","in_stock":true},{"title":"14mm \/ 1 Pcs","offer_id":52378074743058,"sku":"YMXLLQJD08470x1","price":15.35,"currency_code":"USD","in_stock":true},{"title":"15mm \/ 1 Pcs","offer_id":52378074775826,"sku":"YMXLLQJD08471x1","price":17.88,"currency_code":"USD","in_stock":true},{"title":"16mm \/ 1 Pcs","offer_id":52378074808594,"sku":"YMXLLQJD08472x1","price":19.79,"currency_code":"USD","in_stock":true},{"title":"17mm \/ 1 Pcs","offer_id":52378074841362,"sku":"YMXLLQJD08473x1","price":21.28,"currency_code":"USD","in_stock":true},{"title":"18mm \/ 1 Pcs","offer_id":52378074874130,"sku":"YMXLLQJD08474x1","price":22.78,"currency_code":"USD","in_stock":true},{"title":"19mm \/ 1 Pcs","offer_id":52378074906898,"sku":"YMXLLQJD08475x1","price":24.33,"currency_code":"USD","in_stock":true},{"title":"20mm \/ 1 Pcs","offer_id":52378074939666,"sku":"YMXLLQJD08476x1","price":25.09,"currency_code":"USD","in_stock":true},{"title":"21mm \/ 1 Pcs","offer_id":52378074972434,"sku":"YMXLLQJD08477x1","price":28.9,"currency_code":"USD","in_stock":true},{"title":"22mm \/ 1 Pcs","offer_id":52378075005202,"sku":"YMXLLQJD08478x1","price":32.49,"currency_code":"USD","in_stock":true},{"title":"23mm \/ 1 Pcs","offer_id":52378075037970,"sku":"YMXLLQJD08479x1","price":35.56,"currency_code":"USD","in_stock":true},{"title":"24mm \/ 1 Pcs","offer_id":52378075070738,"sku":"YMXLLQJD08480x1","price":39.02,"currency_code":"USD","in_stock":true},{"title":"27mm \/ 1 Pcs","offer_id":52378075103506,"sku":"YMXLLQJD08481x1","price":44.19,"currency_code":"USD","in_stock":true},{"title":"30mm \/ 1 Pcs","offer_id":52378075136274,"sku":"YMXLLQJD08482x1","price":49.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-07_395b2c5a-8994-4b52-bab0-15e64e3e8d4a.jpg?v=1781705277","url":"https:\/\/homediyer.com\/de\/products\/spanner-combination-wrench-crv-open-ended-round-fixed-head-spanners-6mm-30mm","provider":"HomeDIYer","version":"1.0","type":"link"}