{"product_id":"flexzion-din-iso-bubble-flare-brake-line-flaring-tool-kit-metric-4-75-6-8-10mm-dies-heat-treated-steel-case","title":"Flexzion DIN\/ISO Bubble Flare Brake Line Flaring Tool Kit — Metric 4.75\/6\/8\/10mm Dies, Heat-Treated Steel, Case","description":"\u003cp\u003e\u003cstrong\u003eFlexzion's DIN\/ISO Bubble Flare Brake Line Flaring Tool Kit builds professional-quality European-style bubble flares on copper, brass, aluminum, and mild steel tubing quickly and reliably.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis hydraulic-style flaring kit is made for technicians and home mechanics who need consistent, leak-resistant flares for hydraulic and brake lines. The set includes four metric dies—4.75mm (CNF-3), 6mm (CNF-4), 8mm and 10mm—so you can service a wide range of vehicles without searching for extra adapters. All parts store neatly in a blow-molded case, making the kit portable and organized for garage, shop, or roadside use.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Flexzion kit create DIN\/ISO bubble flares accurately?\u003c\/h3\u003e\n\u003cp\u003eThe tool uses precisely machined dies and a robust flaring bar to form the bubble flare shape that meets DIN\/ISO (European) specifications. Heat-treated steel components keep alignment stable under pressure so each flare is uniform and concentric.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMachined metric dies for 4.75, 6, 8 and 10mm tubing\u003c\/li\u003e\n  \u003cli\u003eHeat-treated flaring bar for consistent alignment\u003c\/li\u003e\n  \u003cli\u003eSingle-motion hydraulic-style operation for repeatability\u003c\/li\u003e\n  \u003cli\u003eWorks on copper, brass, aluminum, mild steel tubing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich tubing sizes and materials are supported by this flaring set?\u003c\/h3\u003e\n\u003cp\u003eIncluded dies cover the most common metric brake and hydraulic tubing sizes used in European vehicles and many American models. The tool is compatible with soft metals typically used for brake and fuel lines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e4.75mm (CNF-3) for older European systems\u003c\/li\u003e\n  \u003cli\u003e6mm (CNF-4), 8mm, 10mm for modern brake and hydraulic lines\u003c\/li\u003e\n  \u003cli\u003eSuitable for copper, brass, aluminum, and mild steel tubing\u003c\/li\u003e\n  \u003cli\u003eAdapter selection eliminates need for separate tooling per size\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat features improve safety and durability while flaring brake lines?\u003c\/h3\u003e\n\u003cp\u003eDurability and proper flare geometry are essential for secure, leak-free brake and hydraulic fittings. Flexzion prioritizes long-lasting materials and a design that clamps tubing rigidly to prevent slipping or misalignment during forming.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHeat-treated steel construction for longevity\u003c\/li\u003e\n  \u003cli\u003ePositive tube clamping reduces deformation and leaks\u003c\/li\u003e\n  \u003cli\u003ePrecision dies form correct seat angle and lip for fittings\u003c\/li\u003e\n  \u003cli\u003eSturdy case protects components and keeps parts clean\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow portable and user-friendly is the kit for mobile repairs?\u003c\/h3\u003e\n\u003cp\u003eThe complete kit ships in a compact blow-molded storage case that organizes dies, the gauge\/wrench, and the flaring tool for quick access. The set is designed to get you from setup to a finished flare with minimal adjustments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBlow-molded case for transport and storage\u003c\/li\u003e\n  \u003cli\u003eGauge\/wrench included for sizing and adjustments\u003c\/li\u003e\n  \u003cli\u003eStraightforward setup, helpful for DIY and pros\u003c\/li\u003e\n  \u003cli\u003eAll parts stay secured to prevent loss on job sites\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The Flexzion DIN\/ISO Bubble Flare Brake Line Flaring Tool Kit is aimed at automotive technicians, restoration hobbyists, and anyone who services European-style brake and hydraulic systems. If you work with metric brake tubing or want one portable kit that covers common sizes and materials, this set provides the dies, clamping precision, and durable build to produce consistent, service-ready bubble flares.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit work on American brake fittings?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—while optimized for DIN\/ISO bubble flares, the included 8mm and 10mm dies cover many American metric-equivalent fittings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this on aluminum tubing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The tool is suitable for copper, brass, aluminum, and mild steel tubing when used with proper technique.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Flexzion","offers":[{"title":"Default Title","offer_id":48085893513374,"sku":"B083963NP5","price":46.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/flexzion-front-view-kit-open.jpg?v=1785879835","url":"https:\/\/northtrailauto.ca\/products\/flexzion-din-iso-bubble-flare-brake-line-flaring-tool-kit-metric-4-75-6-8-10mm-dies-heat-treated-steel-case","provider":"North Trail Auto","version":"1.0","type":"link"}