{"product_id":"gmkd-copper-tube-rounder-pliers-6-hole-1-4-7-8-manual-copper-aluminum-repair-tool-extended-lever","title":"GMKD Copper Tube Rounder Pliers — 6-Hole 1\/4\"–7\/8\" Manual Copper \u0026 Aluminum Repair Tool, Extended Lever","description":"\u003cp\u003e\u003cstrong\u003eGMKD Copper Tube Rounder Pliers is a hand-operated repair tool that reshapes and straightens flattened or dented copper and aluminum tubing across six common diameters.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhether you're servicing HVAC lines, refrigeration loops, or running new plumbing runs, damaged tubing can slow a job or force costly replacements. The GMKD Copper Tube Rounder combines a 6-hole die block with an extended-lever plier body and alloy construction to restore tubes to their original round profile quickly and reliably. Lightweight and manually driven, it fits common sizes from 1\/4\" to 7\/8\" and gives technicians a portable, durable option for on-site repairs.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this tool reshape flattened copper tubing?\u003c\/h3\u003e\n\u003cp\u003eThe pliers use a six-position die block matched to standard tube diameters. You insert the flattened section into the appropriately sized hole and squeeze the extended lever—mechanical advantage reshapes the metal without thinning the wall excessively.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSix precision holes: 1\/4\", 3\/8\", 1\/2\", 5\/8\", 3\/4\", 7\/8\"\u003c\/li\u003e\n  \u003cli\u003eExtended lever arm for easier crimping with less hand force\u003c\/li\u003e\n  \u003cli\u003eManual drive avoids heat or power tools near refrigerant lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and builds are compatible with these repair pliers?\u003c\/h3\u003e\n\u003cp\u003eDesigned primarily for copper tubing, the alloy jaws also work with soft aluminum pipes used in some HVAC and refrigeration systems. The tool’s geometry is tuned to gently reform metal without cutting or scoring the surface.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBest for soft copper and aluminum tubing up to 7\/8\" diameter\u003c\/li\u003e\n  \u003cli\u003eAlloy construction resists deformation and corrosion\u003c\/li\u003e\n  \u003cli\u003eManual control helps prevent overworking thin-walled tubes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this tool fit into professional repair workflows?\u003c\/h3\u003e\n\u003cp\u003eTechnicians carry this plier as a fast field fix when tubing is dented during handling or installation. It restores flow profile and makes subsequent brazing, flaring, or fitting easier without cutting out sections or replacing line sets whenever practical.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePortable and lightweight for truck or tool bag storage\u003c\/li\u003e\n  \u003cli\u003eSaves time by avoiding full section replacement in many cases\u003c\/li\u003e\n  \u003cli\u003eCompatible with common HVAC and refrigeration line sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do you choose the right hole and use the pliers safely?\u003c\/h3\u003e\n\u003cp\u003eMatch the tube outside diameter to the labeled hole that most closely fits; smaller holes give firmer reshaping. Support the tube near the dent, insert gently, and apply steady pressure with the lever—avoid sudden, forceful strikes that can crease the metal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSelect the die that fits snugly but allows the tube to rotate during work\u003c\/li\u003e\n  \u003cli\u003eUse steady, progressive squeezes rather than one full-power compression\u003c\/li\u003e\n  \u003cli\u003eInspect wall thickness after reshaping before brazing or pressurizing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The GMKD Copper Tube Rounder Pliers suit HVAC technicians, refrigeration specialists, plumbers, and DIYers who need a reliable, manual solution for repairing flattened or dented copper and soft aluminum tubing. It’s ideal when portability, control, and preserving tube material are priorities—use it on-site to restore tubing profile, speed installation steps, and reduce unnecessary replacements without electrical tools.\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: What tube sizes does the GMKD rounder support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It fits six diameters: 1\/4\", 3\/8\", 1\/2\", 5\/8\", 3\/4\", and 7\/8\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use it on aluminum as well as copper?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it’s suitable for soft aluminum and copper tubing within the listed sizes.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GMKD","offers":[{"title":"Default Title","offer_id":48085967339678,"sku":"B0DL576RSZ","price":42.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/gmkd-front-view-closed-plier.jpg?v=1785881760","url":"https:\/\/northtrailauto.ca\/products\/gmkd-copper-tube-rounder-pliers-6-hole-1-4-7-8-manual-copper-aluminum-repair-tool-extended-lever","provider":"North Trail Auto","version":"1.0","type":"link"}