{"product_id":"7-piece-copper-tube-expander-swaging-tool-bit-set-hvac-plumbing","title":"7-Piece Copper Tube Expander Swaging Tool Bit Set for HVAC \u0026 Plumbing","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e🎬\u003c\/span\u003e Watch the installation demo: \u003c\/div\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/bQyKYTL2ZFQ\" style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%;\"\u003e\n  \u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eCopper Tube Expander Swaging Tool Bit Set — Drill-Powered Pipe Expansion for HVAC \u0026amp; Plumbing\u003c\/h2\u003e\n\u003cp\u003eStruggling to get a tight, leak-free joint when connecting copper refrigerant lines? Whether you're installing a mini-split system, repairing an A\/C line set, or joining copper plumbing pipe, this 7-piece swaging tool bit set gives you the right size for every standard copper tube diameter — without switching tools mid-job.\u003c\/p\u003e\n\u003cp\u003eThe kit combines a \u003cstrong\u003e5-in-1 step expander bit\u003c\/strong\u003e (covering 1\/4 in \/ 6 mm, 3\/8 in \/ 9 mm, 1\/2 in \/ 12 mm, 5\/8 in \/ 16 mm, and 3\/4 in \/ 19 mm) with \u003cstrong\u003e6 individual swaging heads\u003c\/strong\u003e (S3\/8, S1\/2, S5\/8, S3\/4, S7\/8, and one additional size). All bits are machined from \u003cstrong\u003ebearing steel\u003c\/strong\u003e and feature an \u003cstrong\u003eupgraded hexagonal shank\u003c\/strong\u003e that locks securely into standard drill chucks — no slipping, no rolling off the workbench. The high-temperature expansion method forms a precise bell-mouth socket that prevents cracks and leaks at the joint.\u003c\/p\u003e\n\u003cp\u003eIdeal for HVAC technicians installing split-system and mini-split air conditioners, plumbers joining copper water lines, and vehicle A\/C repair specialists extending refrigerant tubing.\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 copper tubing used in residential \u0026amp; light-commercial HVAC split systems, mini-splits, vehicle A\/C units, and plumbing — covering 1\/4 in (6 mm) to 3\/4 in (19 mm) inner diameter.\u003c\/div\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\u003cspan\u003e🔧 7-piece complete kit — includes one 5-in-1 step expander bit and six individual swaging heads, covering all standard residential copper tube sizes from 1\/4 in (6 mm) to 3\/4 in (19 mm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e🏗️ Bearing steel construction — each bit is machined from bearing steel for durability and dimensional accuracy across repeated use on copper tubing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e⬡ Upgraded hexagonal shank — the hex shank design adapts to more drill interfaces, bites and fixes securely, and does not roll or slip compared to round-shank alternatives\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e🌡️ High-temperature expansion method — the thermal expansion process forms a tight bell-mouth socket that prevents cracks and refrigerant or water leaks at the joint\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e⚡ Drill \u0026amp; air tool compatible — fits standard power drills and pneumatic tools; faster and more convenient than manual expanders\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e🎬 Step-by-step operation guide — 4-step process: choose the right size → attach to drill → expand the tube → operation complete. Watch the demo: \u003ca rel=\"noopener\" href=\"https:\/\/www.youtube.com\/embed\/bQyKYTL2ZFQ\" target=\"_blank\"\u003eWatch Demo\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e1 × 5-in-1 step expander bit (1\/4 in \/ 6 mm, 3\/8 in \/ 9 mm, 1\/2 in \/ 12 mm, 5\/8 in \/ 16 mm, 3\/4 in \/ 19 mm)\u003c\/li\u003e\n\u003cli\u003e6 × Individual swaging heads: S3\/8, S1\/2, S5\/8, S3\/4, S7\/8, and one additional size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho Is This For\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-usecases\"\u003e\n\u003cdiv class=\"hdiy-usecase-item\"\u003e\n\u003cstrong\u003e🔧 HVAC Technicians \u0026amp; Refrigeration Engineers\u003c\/strong\u003e — Professionals installing or repairing split-system air conditioners and mini-splits who need reliable, repeatable copper tube expansion with a standard power drill on the job site.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-usecase-item\"\u003e\n\u003cstrong\u003e🏠 DIY Homeowners Installing Mini-Splits\u003c\/strong\u003e — Homeowners running their own line sets for ductless mini-split systems who want a complete expander kit compatible with their existing cordless drill.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-usecase-item\"\u003e\n\u003cstrong\u003e🚗 Vehicle A\/C Repair Specialists\u003c\/strong\u003e — Mechanics repairing or extending copper refrigerant lines in vehicle air conditioning systems where a precise, leak-free expansion is critical.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-usecase-item\"\u003e\n\u003cstrong\u003e🪛 Plumbers \u0026amp; Pipefitters\u003c\/strong\u003e — Trade professionals joining copper water lines who need a fast, drill-powered expansion method as an alternative to manual expanders.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Pieces\u003c\/td\u003e\n\u003ctd\u003e7 (1 × 5-in-1 step bit + 6 × individual swaging heads)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eBearing Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Type\u003c\/td\u003e\n\u003ctd\u003eUpgraded Hexagonal (Hex) Shank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Method\u003c\/td\u003e\n\u003ctd\u003eHigh-temperature thermal expansion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Bit Sizes\u003c\/td\u003e\n\u003ctd\u003e1\/4 in (6 mm), 3\/8 in (9 mm), 1\/2 in (12 mm), 5\/8 in (16 mm), 3\/4 in (19 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndividual Head Sizes\u003c\/td\u003e\n\u003ctd\u003eS3\/8, S1\/2, S5\/8, S3\/4, S7\/8 (+ 1 additional)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Tubing Material\u003c\/td\u003e\n\u003ctd\u003eCopper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Systems\u003c\/td\u003e\n\u003ctd\u003eHVAC split A\/C, mini-split, vehicle A\/C, residential plumbing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e230 g (approx. 8.1 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat sizes does this set cover?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eThe 5-in-1 step bit covers 1\/4 in (6 mm), 3\/8 in (9 mm), 1\/2 in (12 mm), 5\/8 in (16 mm), and 3\/4 in (19 mm). The 6 individual swaging heads cover S3\/8, S1\/2, S5\/8, S3\/4, and S7\/8 (plus one additional size). Together the kit covers all standard residential copper tubing diameters.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat material are the bits made from?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eAll bits are machined from bearing steel, which provides the hardness and durability needed for repeated copper tube expansion without losing dimensional accuracy.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWhy is the hex shank better than a round shank?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eThe upgraded hexagonal shank adapts to more drill chuck interfaces, bites and fixes more securely during operation, and does not roll off surfaces — unlike round-shank expanders which can slip in the chuck and are harder to control.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill these bits work with my standard cordless drill?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eYes. The hex shank fits standard drill chucks and pneumatic (air) tools. A variable-speed drill is recommended for better control during expansion.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs it safe to touch the copper pipe immediately after expanding?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eNo. The high-temperature expansion process causes the pipe to heat up significantly. Always wear gloves during operation and wait for the pipe to cool down completely before touching it.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eHow do I use the tool correctly?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eStep 1: Choose the right-size head based on the inner diameter of the copper pipe. Step 2: Attach the bit to your electric drill. Step 3: Drill into the copper pipe mouth that needs expanding (thermal expansion of the pipe mouth is normal). Step 4: Twist until the handle cover of the expander head exits — expansion is complete. See the demo video for a visual walkthrough.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this on aluminium or steel tubing?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003eThis set is designed and optimised for copper tubing. Using the bits on aluminium or steel is not recommended, as it may damage the bits or produce an inaccurate expansion.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003eReady to expand copper pipe the fast, drill-powered way? Add the \u003cstrong\u003e7-Piece Copper Tube Expander Swaging Tool Bit Set\u003c\/strong\u003e to your cart and get the right fit for every HVAC and plumbing job.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"Default Title","offer_id":50830352908562,"sku":"UK-MZTZ0091","price":16.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/6_0101062e-be8d-497a-92f9-01eead09084a.webp?v=1762199116","url":"https:\/\/homediyer.com\/products\/7-piece-copper-tube-expander-swaging-tool-bit-set-hvac-plumbing","provider":"HomeDIYer","version":"1.0","type":"link"}