คุณลักษณะ

• Spring clutch type ring compressor.　The diameter of the compressor is maintained where the friction clutch stops the wrench.　It doesn't open suddenly.　Fits the piston perfectly. You can clearly see the action indicating that it is fixed.　Insert the ring into the piston and insert it into the piston ring compressor.　Close the square wrench on the piston ring compressor.　Insert the piston ring compressor into the cylinder and push the piston in.　When finished, loosen the square wrench on the piston ring compressor.