The line of compressors from CTA tools features ratchet mechanism with square drive tools to adjust diameter, enlarged crimped edge to prevent compressor from entering cylinder and spring steel construction with double band design.

The piston ring compressors come in three sizes for various applications. The 3-in. compressor, model #4021, is designed for passenger cars. Model #4023 has a depth of 4-in. and is designed for use on cars and light trucks. The largest model, #4024, measured 6-in. deep and is meant for tractor or diesel truck application.

For more info: ctatools.com