Piston Ring Compressor (4 Inch)

Features:
- Piston ring compressors for easy insertion of the piston into the cylinder bore and even compression over full ring length.
- With adjustable safety screw.
- Quick tighten and release design
- High-quality spring steel band with square drive

Specification:
- Size: 4 inch
- 4"-inch length (suitable for piston ring 53mm - 175mm)