Wide Compatibility and Adjustable Engine Vehicle Equipment Valve Spring Compressor Tool features a rotating knob to adjust travel distance, making it versatile for various valve sizes and reducing effort during disassembly. Multi Functional Doubles as a seal puller and spring compressor, streamlining valve service, seal replacement, and spring compression in one tool. Material Valve Spring Compressor Tool is made of 45 steel, delivering long term performance, resistance to rust, and the ability to withstand heavy duty use in automotive repair. Compact and Easy to Handle Measuring 42 cm (16.54 inch), it provides accurate control in tight engine bays while remaining sturdy enough for professional tasks. Practical applications - Replacing valve seals in engines with limited access and space. - Removing and installing valve springs during cylinder head service or engine rebuilds. - Servicing valve assemblies in tight or high-performance engines where controlled spring compression is needed.