The color coded quick changes mechanism enables quick jaw configuration switching between internal / external snapping rings without secondary tools, optimizing workflow efficiency Engineered with ergonomic nonslip handles and a compact storage case, the heat treated alloy steel mouths ensures sturdy for repeated circlip operations without deformation Perfect for automotive repairs, industrial machinery servicing, and delicate watchmaking scenarios where secure grip on retaining rings prevents component damage during disassembly This 4pcs snapping rings pliers set combines internal / external functions with tool steel construction, versatile retaining rings removal / installation through interchangeable accuracy machined mouths Ideal for mechanics, electronics technicians, and craft enthusiasts requiring efficient circlip tools for frequent equipment maintenance or accuracy assembly tasks, Manufacturer: Woedpez