Review on Pneumatic Brake Caliper Compression Tool with 2 Hangers, 25pc Professional Brake Tool Set for American, European, Japanese Autos by David Schweigert

Good tool. This works great if you have the right air quick release. I put on a typical car QD. It was 1/4 NPT. I had to drill and cut with a tool to get the correct QD. After putting it on I hooked it up to my compressor and it worked great. Basically, it's a pneumatic piston with a twist grip that you use to hand-tighten a caliper. The tool is made of cast metal and steel. It is of good quality and works very well. You can even use it to break in calipers that don't require reversing the pistons. The pressure of the pneumatic ram easily pushes the caliper back. I think for the money this is good value if you have the right air connection. You don't have to drill and tap the tool to make it work for you.