Piston Ring Compressor and piston ring pliers.Piston ring disassembly process, expanding the piston rings.-- Piston installer plier used for installs and removes piston rings; Easy to use, safe and reliable.Repairing, replacing, and cleaning your piston is made easier with the help of this piston service tool set. 

DAMAGE-FREE: Perform engine rebuilds and use this compressor for proper installation of the piston and rings in the cylinder without twisting or damaging parts; Perfect fit on the piston and a positive locking action to compress rings and allow installation of pistons into cylinders

Use an oil lubrication (not included) on ring and piston before compressing; Place piston inside the cylinder, tighten the compressor, lightly tap the piston into the bore with a rubber mallet (not included) while holding downward pressure on compressor

【Size & Package】
1Pcs 3 inch piston ring compressor,  53mm - 175mm
1Pcs 4 inch piston ring compressor, 53mm - 175mm
1Pcs 6 inch piston ring compressor,60mm - 195mm
1Pcs x piston ring pliers,
 3Pcs wrench