With a range of 2-1/8" (54 mm) to 5" (12.7 cm), this ring compressor utilizes a spring clutch to provide a proper fit on the piston and a positive locking action. This mechanism eliminates common ratchet problems while maintaining tension during engine service. This 12 oz (340.2 g) tool provides a mechanical solution for compressing piston rings.

With a range of 2-1/8" (54 mm) to 5" (12.7 cm), this ring compressor utilizes a spring clutch to provide a proper fit on the piston and a positive locking action. This mechanism eliminates common ratchet problems while maintaining tension during engine service. This 12 oz (340.2 g) tool provides a mechanical solution for compressing piston rings.