1. UserSafe AntiClip Design: The unique antiadding design prevents the tool from being accidentally stored in motor pockets or overlooked during assembly, reducing the risks of damage or tool loss. Piston Ring Compressor Tool 2. AntiReverse Gear Mechanism: The tool is equipped with a secure antireverse gear system, preventing slippage during compression. This ensures precise adjustment of piston rings into cylinders with minimized risk of damage. Piston Ring Filer 3. Quality Spring Steel: The compressor is constructed with temperatureresistant, bendproof spring steel, maintaining tension without distortion. It withstands repeated use under pressure, making it ideal for both professional and DIY mechanics. Piston Ring Compressor 4. Complete Tool Set: This piston ring compressor kit includes both 3inch and 4inch compressors, along with an expansion clamp and a wrench, meeting the needs of most automotive engine repairs and rebuilds. Piston Ring Grinder