When replacing brake pads, you need to push the caliper pistons in to make room for the new, thicker pads. There are other ways to do this but as with so many things; there is the right tool for the job and that is precisely what this Brake Caliper Spreader is.
This is a very high quality tool that is the perfect addition to any professional or hobby mechanic's tool box. It's ideal for motorcycle brake calipers nut it can easily be used on cars as well. With this tool, the piston can be pushed in squarely, avoiding damage that can be caused by using other methods that only apply pressure to one side of the piston.
Threaded rod can be turned with the T-handle but also with a ½" drive tool or a wrench.