Boxcar

Ok, the pictures pretty much tell the whole story.
1. 6 inch C-clamp
2. One piece of 3/8 hose about 3/4 inch long
3. Old 1/4 drive 9/16 socket
4. 3/8 to 1/4 inch drive adapter
5. Power drill

Cut the T-handle off the C-clamp
Press the hose onto the shaft about 1/4 inch. Do not press it on all the way, because you can't get the socket on.
Place socket over the end of hose and press it onto the shaft. I used a vice, but a hammer should work.
Done.

Edit: Set drill/driver to a low torque setting, reduce chance of any piston damage when it makes contact in the back of the sleeve.
So far, I've used it three times, I track so I do caliper maintenance regularly, with no issues so far.

Your new Power Caliper Piston Compress Tool.

v1 rot8

Great idea, thanks

ls1121

I use a screwdriver, sometimes two, used this method all of my life and have never had an issue.

okie08vette

Pretty cool, I just use the c clamp t handle since I don't have a need to do this often. I would be worried that I would but to much pressure on the pistons with the power driver.

Boxcar

Agreed on the pressure....

I edited my original post with a couple of after thoughts.

Boxcar

I assmume you are talking about a power screwdriver?

Smaller tool with less torque?

wayback

I just use the C clamp and an old pad. Keeps the clamp off the piston and applies even pressure.

Good idea though. Give you an A for a well thought out design.

4SUMERZ

Great solution and ingenious idea.
I have used a C-clamp in the past with a small block of wood or used pad, but I find that 2 flat screwdrivers are really effective to compress the pistons before I remove the bolt to undo the caliper.

HBsurfer

Or you can buy the actual tool that is made for the job at Harbor Freight for $7.00.

RC4G

Or leave the t-handle in the clamp (so it can still be used by hand) and just notch an old socket with a grinder that you can then slip over the T?