Capable of compressing piston rings on diameters ranging from 2-7/8 to 4-3/8" (73 to 111.1 mm), this 6-pack set facilitates engine assembly and piston installation. The compressor pliers utilize a ratcheting lock to hold the handles in position, maintaining tension on the ring for controlled insertion into the cylinder.

Capable of compressing piston rings on diameters ranging from 2-7/8 to 4-3/8" (73 to 111.1 mm), this 6-pack set facilitates engine assembly and piston installation. The compressor pliers utilize a ratcheting lock to hold the handles in position, maintaining tension on the ring for controlled insertion into the cylinder.