{"product_id":"7x-swaging-tube-expander-tool-drill-bit-set-air-conditioner-copper-tube-expander","title":"7x Swaging Tube Expander Tool Drill Bit Set Air Conditioner Copper Tube Expander","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e7x Swaging Tube Expander Drill Bit Set — Reliable Copper Tube Expansion for HVAC \u0026amp; Plumbing Work\u003c\/h2\u003e\n\u003cp\u003eWhen a mismatched tube joint causes a refrigerant leak or a failed solder connection, the culprit is almost always improper tube preparation. HVAC technicians, refrigeration mechanics, and hands-on DIYers who work with copper tubing need a swaging tube expander that delivers consistent, repeatable flares without cracking or deforming the tube wall. This 7-piece swaging tube expander drill bit set gives you the right bit for each common copper tube size so you can prep joints correctly the first time.\u003c\/p\u003e\n\u003cp\u003eThe set includes 7 swaging drill bits sized to cover copper tube outer diameters typically ranging from 1\/4 in to 3\/4 in (approximately 6 mm to 19 mm). Each bit is machined to expand the tube end into a precise bell-mouth socket, creating a tight slip-fit for soldering or brazing. The bits are compatible with standard electric drills and air-powered drills, making them practical for both workshop and field use.\u003c\/p\u003e\n\u003cp\u003eTypical applications include air conditioner line-set connections, refrigeration loop assembly, residential and light-commercial plumbing copper pipe joining, and HVAC coil replacement work. Whether you are swaging copper for a mini-split installation, a chiller loop repair, or a custom refrigeration build, this drill bit set covers the sizes you encounter most often on the job.\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 Designed for use with standard copper tubing (Type K, L, and M). Compatible with most corded and cordless electric drills and pneumatic air drills. Verify tube outer diameter against selected bit size before use.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Swaging Tube Expander Drill Bits\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e \u003cstrong\u003e7-Piece Size Coverage\u003c\/strong\u003e — One set covers the most common copper tube OD sizes (typically 1\/4 in to 3\/4 in \/ ~6–19 mm), eliminating the need for multiple single-size tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eDrill-Powered Operation\u003c\/strong\u003e — Hex shank design fits standard 3\/8 in and 1\/2 in drill chucks; works with both corded electric drills and air-powered drills for fast, consistent swaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e \u003cstrong\u003eHardened Steel Construction\u003c\/strong\u003e — Bits are machined from hardened steel to maintain dimensional accuracy through repeated use on copper tubing without deforming the cutting profile.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003ePrecise Bell-Mouth Socket Profile\u003c\/strong\u003e — Each bit expands the tube end to a uniform socket depth and angle, producing a slip-fit joint ready for soldering, brazing, or press-fit connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e❄️\u003c\/span\u003e \u003cstrong\u003eHVAC \u0026amp; Refrigeration Ready\u003c\/strong\u003e — Engineered for copper tube work in air conditioning line sets, refrigeration loops, and light-commercial HVAC systems where joint integrity is critical.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🧰\u003c\/span\u003e \u003cstrong\u003eCompact Set Format\u003c\/strong\u003e — All 7 bits are supplied together, making it straightforward to select the correct size on-site without carrying multiple separate tools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Swaging Tube Expander Drill Bit Set\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Pieces\u003c\/th\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Tube Type\u003c\/th\u003e\n\u003ctd\u003eCopper (Type K, L, M)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTube OD Range\u003c\/th\u003e\n\u003ctd\u003eTypically 1\/4 in – 3\/4 in (approx. 6–19 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Type\u003c\/th\u003e\n\u003ctd\u003eHex shank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Drill Chuck\u003c\/th\u003e\n\u003ctd\u003e3\/8 in and 1\/2 in standard chucks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive Type\u003c\/th\u003e\n\u003ctd\u003eElectric drill \/ Air drill\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHardened steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eHVAC, refrigeration, plumbing copper tube swaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSet Weight\u003c\/th\u003e\n\u003ctd\u003eApprox. 0.5 kg (1.1 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVariant Options\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\u003cdetails\u003e\n\u003csummary\u003eWhat tube sizes does this 7-piece swaging set cover?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe set is designed to cover the most common copper tube outer diameters, typically ranging from 1\/4 in to 3\/4 in (approximately 6 mm to 19 mm). Each of the 7 bits corresponds to one standard OD size. Check the individual bit markings against your tube OD before use to confirm the correct match.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill these bits work with my cordless drill?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The hex shank design is compatible with standard 3\/8 in and 1\/2 in drill chucks found on most cordless and corded electric drills. The bits also work with pneumatic air drills. Use a low-to-medium drill speed setting for best results when expanding copper tube.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this set on aluminum or stainless steel tubing?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThis set is engineered specifically for copper tubing (Type K, L, and M). While the hardened steel bits are durable, using them on aluminum or stainless steel tubing is not recommended, as it may damage the bit profile and produce an inaccurate socket. Use tube-type-specific tooling for non-copper materials.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo the swaged joints need to be soldered, or can they be used as press-fit connections?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe bell-mouth socket profile produced by these bits is primarily intended for soldering or brazing, which is the standard method for permanent copper tube joints in HVAC and plumbing. The socket can also serve as a slip-fit alignment aid during assembly, but for pressure-rated systems, always complete the joint with solder or braze filler per applicable codes.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I select the correct bit size for my copper tube?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMatch the bit size to the outer diameter (OD) of your copper tube, not the nominal pipe size. For example, 1\/2 in nominal Type L copper has an OD of approximately 5\/8 in (15.9 mm). Measure your tube OD with calipers and select the corresponding bit. Each bit in the set is marked with its target OD for easy identification.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this set suitable for air conditioner line-set installation?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Swaging is a standard technique for joining copper line-set tubing in split-system and mini-split air conditioner installations. The set covers the 1\/4 in and 3\/8 in sizes commonly used for suction and liquid lines in residential AC systems, as well as larger sizes for light-commercial applications. Always pressure-test joints after brazing before charging the system.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I keep the bits in good condition after use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eAfter each use, wipe the bits clean of copper shavings and any flux residue with a dry cloth. Store them in a dry location to prevent surface oxidation. Avoid dropping the bits on hard surfaces, as impact can chip the machined profile. Inspect the socket-forming tip before each use; replace any bit that shows visible deformation or chipping.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\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\": \"What tube sizes does this 7-piece swaging set cover?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The set covers copper tube outer diameters typically ranging from 1\/4 in to 3\/4 in (approximately 6 mm to 19 mm). Each of the 7 bits corresponds to one standard OD size.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will these bits work with my cordless drill?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The hex shank design fits standard 3\/8 in and 1\/2 in drill chucks on most cordless, corded electric, and pneumatic air drills. Use a low-to-medium speed setting when expanding copper tube.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use this set on aluminum or stainless steel tubing?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This set is engineered for copper tubing (Type K, L, M). Use on aluminum or stainless steel is not recommended as it may damage the bit profile.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do the swaged joints need to be soldered, or can they be used as press-fit connections?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The socket profile is primarily intended for soldering or brazing. For pressure-rated systems, always complete the joint with solder or braze filler per applicable codes.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I select the correct bit size for my copper tube?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Match the bit to the outer diameter (OD) of your copper tube, not the nominal pipe size. Measure with calipers and select the corresponding marked bit.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this set suitable for air conditioner line-set installation?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The set covers 1\/4 in and 3\/8 in sizes common in residential AC line sets, as well as larger sizes for light-commercial applications. Pressure-test joints after brazing before charging the system.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I keep the bits in good condition after use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Wipe bits clean after each use, store in a dry location, and inspect the tip before use. Replace any bit showing visible deformation or chipping.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"Default Title","offer_id":52378263716114,"sku":"GYZLPUK-MZTZ0091","price":14.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-18_552c33da-67d3-4a90-8834-8e90ddf6216e.jpg?v=1781874476","url":"https:\/\/homediyer.com\/de\/products\/7x-swaging-tube-expander-tool-drill-bit-set-air-conditioner-copper-tube-expander","provider":"HomeDIYer","version":"1.0","type":"link"}