- Piston ring compressor pliers: will not buckle or warp even at its maximum opening, ensuring secure and even compression to prevent ring distortion during installation. - Piston ring installer: provides support, making removal very easy and preventing twisting the ring, reducing the risk of ring damage during service. - Piston ring expander pliers: used to take out piston rings sized 80-120 mm, offering controlled expansion to minimize ring snagging or springback. - Car tools protection: designed to prevent scratching or breaking the piston ring during use. Practical use scenarios - Engine rebuilds or ring replacement on engines with rings in the 80-120 mm range: use the expander to remove old rings, installer to support and avoid twisting, then compressor pliers to install new rings with even pressure. - Routine piston work in restricted workshops: compact, reliable tool set helps manage rings safely without damaging grooves or rings. - DIY maintenance or repairs: minimizes risk of ring deformation or damage during removal and installation, promoting proper seating and longevity.