Advanced Tool Design Model ATD-3400 8 Piece disconnect set missing 1

The ATD‑3400 8‑Piece Disconnect Tool Set from Advanced Tool Design is a specialized automotive service kit engineered to make separating fuel, oil, transmission, and A/C quick‑disconnect lines fast, safe, and damage‑free. Whether you’re a professional technician or a DIY enthusiast tackling vehicle maintenance, this set delivers reliable performance and essential versatility for modern auto servicing.

🔧 Product Overview – Essential Line Disconnect Tools

This 8‑piece disconnect set includes a selection of high‑utility disconnect tools designed to fit popular domestic and import vehicle quick‑connect fittings found on fuel lines, transmission cooler lines, power steering hoses, and air conditioning couplers. Built for durability and ease of use, the ATD‑3400 set helps you complete line separations without damage to expensive lines or connectors — a crucial benefit when servicing late model vehicles.

While this particular set is missing one tool, it still offers a solid mix of disconnect tools for everyday automotive repair and maintenance tasks.

⚙️ Key Features & Benefits

• Comprehensive Tool Assortment – Includes multiple disconnect tools sized to work with a variety of quick‑connect fittings on fuel, transmission, and A/C lines.
• Designed for Quick Disconnect Systems – Ideal for separating spring‑lock and quick‑connect couplers without cutting or damaging fittings.
• Automotive Application Versatility – Covers many common applications on late model Ford, GM, Chrysler, and import vehicles (depending on metric sizes included).
• Durable Construction – Forged or machined tool bodies are built for repeated use, helping resist wear and cracking under load.
• Compact & Portable – Tools typically come in a molded tray or organizer (depending on source listing) that keeps pieces secure and easy to locate.

🛠️ Typical Automotive Uses

This set is perfect for:

• Fuel line quick‑connect separation
• A/C refrigerant line coupling removal
• Transmission cooler hose servicing
• Power steering and vacuum line disconnects
• Engine bay maintenance where access is tight and disconnects are frequent

📈 Why Choose the ATD‑3400 Disconnect Tool Set

The ATD‑3400 provides a practical combination of essential disconnect tools without overwhelming your tool kit — especially useful if you’re focused on fuel system, transmission, or A/C line servicing. Even with one piece missing, this set remains a valuable asset for mechanics and DIYers alike, giving you professional‑grade tools that make vehicle maintenance more efficient and less prone to connector damage.

ATD-3400