Wholesale Flaring & Bending Tool Kit | OEM HVAC & Auto Tools
Heavy-Duty Flaring & Tube Bending Kit: The Ultimate HVAC & Automotive Solution
For professional contractors and mechanics, tubing work is high-stakes. A micro-leak in a high-pressure mini-split AC unit or a cracked fold in an automotive brake line doesn't just cause a system failure—it leads to costly callbacks and safety liabilities.
For B2B hardware distributors, supplying poorly machined hand tools directly results in high retail return rates and damaged reputations. The Longrun Hardware Flaring & Bending Combo Kit is manufactured to solve these exact field issues. By translating mechanical precision into real-world reliability, we help you build a highly profitable, low-complaint plumbing and automotive tool catalog.
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1. Industry-Specific Configurations: Built for Your Buyers
We understand that an HVAC technician has different needs than an auto mechanic. As a direct manufacturer, we don't just sell standard boxes; we offer customized kit assemblies tailored to your target industry:
Refrigeration & HVAC (The Standard Setup): The perfect kit for installing air conditioners, refrigerators, and heat pumps. The precision yoke creates seamless 45-degree flares, allowing for tight, joint-free connections on copper and aluminum lines, significantly reducing refrigerant leak points.
Automotive Repair (The Brake Line Setup): Essential for fabricating custom brake lines, transmission coolers, and fuel systems. This kit includes precision-machined black adapter buttons, allowing mechanics to create safety-critical double flares that won't crack under extreme hydraulic pressure.
Plumbing & Water/Gas Heating: Reliable tube expansion for onsite processing of copper water pipes and gas lines in residential and commercial builds.
2. Technical Precision: Engineering the Perfect Connection
We engineer tubing solutions that contractors trust. Here is how our technical specifications translate into commercial value for your wholesale business:
Absolute Concentricity (Zero Leaks): Cheap flaring yokes often push off-center, creating a flare that is thick on one side and paper-thin on the other. Our cast yokes and flaring cones are precision-machined for absolute concentricity, ensuring a perfectly symmetrical flare wall every single time.
Slip-Free, Score-Free Die Blocks: The included steel flaring bar features calibrated internal ridges. It grips the copper tube securely so it won't push down during the flaring process, yet it is refined enough not to leave deep gouges that weaken the tube's structure.
Kink-Free 180° Bending: Rushed bends cause restricted flow. The included heavy-duty manual lever bender features high-visibility degree markings and radiused channels. This allows mechanics to make smooth, accurate bends without compromising the pipe's internal diameter.
3. Strict Quality Control (QC) Process
Your brand is only as good as the tools inside the box. We implement rigorous QC checkpoints before any batch is shipped:
Metallurgical Testing: We verify the tensile strength of the steel yokes and aluminum bender bodies to ensure they withstand high-torque applications.
Adapter Tolerance Checks: Every double-flaring adapter is micrometer-tested to guarantee exact taper angles.
Transit-Ready Packaging Audits: Heavy tools require secure housing. We drop-test our blow-molded cases to ensure all components stay locked in their designated slots during global ocean freight.
4. Comprehensive OEM & Custom Development Services
Stand out from generic suppliers and protect your margins by building your own brand. We offer scalable OEM/ODM services for our B2B partners:
Custom Retail Packaging: We can mold your corporate logo directly onto the heavy-duty blow-molded cases and customize the outer corrugated master cartons for instant warehouse recognition.
Signature Colors: Looking to differentiate your product line? For bulk orders, the manual tube bender and the storage case can be manufactured in your brand's specific Pantone colors.
New Product Development (ODM): Have a unique request from your local market? Our engineering team can collaborate with you to develop entirely new tube working tools or modify existing designs to meet regional plumbing standards.
Secure your supply chain with a factory that understands B2B wholesale standards.
Contact Our Engineering Team for Custom Kit MOQs
Material & Component Specification
| Component | Material / Spec | Tolerance |
|---|---|---|
| Flaring dies (5 sizes) | Cr12MoV tool steel, induction-hardened HRC 58–62 | Surface roughness Ra ≤ 0.4 μm; concentricity ≤ 0.05 mm TIR |
| Flaring cone | Cr12MoV, mirror-polished | 45° ± 5' single-flare geometry to SAE J533 |
| Bending springs (4 sizes) | Spring steel (65Mn), heat-treated | Bend radius matched to OD of copper tube (no kinking) |
| Tubing cutter | SK5 cutter wheel; aluminum body | Cuts 1/8" – 1-1/8" OD; replaceable wheel |
| Deburring tool | SK5 double-edge blade | Inside + outside edge in one pass |
| Blow-mold case | PP + steel hinge pins; PE foam insert | Drops 1.0 m onto concrete: no functional damage |
The CT-100 is built for daily workshop use. Components are inspected at three checkpoints: incoming steel (mill cert check), post-machining (CMM for die concentricity), and pre-ship (random-sample pressure test on assembled kits).
Standards Reference (HVAC + Plumbing + Auto)
The CT-100 kit is referenced against the following standards; test reports available on request:
- SAE J533 — Flares for tubing (45° single + double flare geometry)
- SAE J1290 — Automotive hydraulic brake systems
- ISO 4038 — Hydraulic brake pipe connections (metric reference)
- ASTM B88 — Seamless copper water tube (material reference)
- ASTM B280 — Seamless copper tube for ACR (air-conditioning, refrigeration)
- ASME B16.22 — Wrought copper and copper alloy solder-joint pressure fittings
- DIN 74234 — Bubble flare (European bubble-flare reference)
- REACH / RoHS — Compliant for EU export
If your market is North America, the kit ships with SAE 45° dies as standard. EU buyers typically add the ISO 4038 / DIN 74234 bubble-flare die as a 6th die on orders of 300+ sets.
3 Failure Modes We Catch Before Shipment
From 8 years of exporting flaring kits, the CT-100 is built to eliminate the three defects that drive returns:
- Bending spring memory loss → spring won't hold bend radius. We use 65Mn spring steel (not cheaper carbon steel) and pre-load each spring to 10,000 cycles before pack-out.
- Cutter wheel wobble → produces angled cuts (step 1 of flaring fails). The CT-100 cutter axle is held to ≤ 0.03 mm runout; verified on dial indicator per lot.
CT-100 — Buyer FAQ (B2B Wholesale & OEM)
1. What is the MOQ for stock CT-100 kits?
200 sets for stock configuration. 500 sets for custom logo on the case. 1,000+ sets for fully private-label retail packaging or a 6th custom die.
2. What is the lead time?
30–45 days for stock configurations after deposit. 45–60 days for custom logo or added die. Sample lead time 7–10 days by DHL.
3. Can I add an ISO 4038 or DIN 74234 bubble-flare die?
Yes. Custom die on orders of 300+ sets. Sample tooling lead time 30 days; production 45–60 days after sample approval.
4. What replacement parts are available?
Cutter wheels (each), bending springs (4 sizes), deburring blades, blow-mold cases, foam inserts, and full die sets (5 pcs per size). MOQ 50 pcs per line item.
5. What is the HS code and shipping mark?
HS code 8205.59 (hand tools, other). Default shipping mark is OEM-neutral; custom shipping mark is free on orders of 500+ sets.
6. Do you support OEM/ODM private label?
Yes — standard OEM program covers case color, logo (silk-screen or laser-etched), retail box design, and barcode/QR. Custom blow-mold case tooling available on orders of 3,000+ sets.
Order Information & Inquiry Options
The CT-100 is in stock at our Ningbo factory. Choose whichever channel fits your buying process — we reply to all three within 12 hours, Monday to Saturday.
- WhatsApp / WeChat: +86 158 5791 1270 — fastest for Latin America, Africa, Middle East (Amy / Alisa / Akira on rotation)
- Email: amy@longrunhardware.com — for formal RFQ with target spec, quantity, destination port, and Incoterms (FOB Ningbo / CIF / DDP)
- RFQ form: Request a Quote online — for buyers who prefer a structured form (15 fields, takes ~3 minutes)
For OEM / private-label programs, please include your target kit configuration (which of the 5 standard dies + any 6th custom die), color, logo file (AI / PDF / PNG), retail box design, and destination port. Our export team will confirm specification, sample plan, lead time, and FOB / CIF pricing.
Related buyer's guide: Brake Line Flaring Tool Kit: B2B Buyer's Guide for Auto Repair Workshops — full comparison of flare types, channel-by-channel market map, and OEM/ODM procurement details for the BLF-24 and CT-100 families.
Comprehensive OEM & Custom Development Services
Stand out from generic suppliers and protect your margins by building your own brand. We offer scalable OEM/ODM services for our B2B partners:
Custom Retail Packaging: We can mold your corporate logo directly onto the heavy-duty blow-molded cases and customize the outer corrugated master cartons for instant warehouse recognition.
Signature Colors: Looking to differentiate your product line? For bulk orders, the manual tube bender and the storage case can be manufactured in your brand's specific Pantone colors.
New Product Development (ODM): Have a unique request from your local market? Our engineering team can collaborate with you to develop entirely new tube working tools or modify existing designs to meet regional plumbing standards.
Secure your supply chain with a factory that understands B2B wholesale standards.
Contact Our Engineering Team for Custom Kit MOQs
