Compressor Fixture Set Heavy Duty. The threaded rod with wide spring contact and the built-in positioning pin can lock the coil spring in place, making the spring compression safer. The threaded rod allows permanent and gentle compression of the springs inside and outside the vehicle by hand or power tools. Reinforce with forged hooks and center screws to maximize strength and service life. Using a 3/4 or 19mm sleeve and ratchet shaft, compress the support spring to safely remove the lock nut holding the ink cartridge. Designed to withstand extreme pressures in any environment, it is an ideal choice for professional mechanics and new car repairers. Lubricate the two spindles with oil. Align the hook with the retracting safety pin so that the hook is installed on the spring. Place the two sets of hooks 180° on opposite sides of each other. Push the safety pin into the locked position on the hook. Use a 3/4 or 19mm sleeve and ratchet to rotate the main shaft and press the support spring to safely remove the fixed ink cartridge fixing nut. The product is shown in the picture. Warm reminder; please be sure to wear safety glasses and gloves when working to protect yourself, thank you. This item is in the category “eBay Motors\Automotive Tools & Supplies\Hand Tools\Other Automotive Hand Tools”. The seller is “vendento” and is located in this country: CN. This item can be shipped worldwide.