Brake Caliper Bike Pump Adaptor

Looking online there are a lot of great tutorials on how to rebuild an automotive brake caliper, but there's one thing that they all take for granted, an air compressor. Without one, the "simple" task of extricating the piston is probably impossible.

So, I designed a basic adaptor for a bicycle pump to be used to provide us with the pressure we need.

The adaptor has provision for a flathead screwdriver but I would recommend only using this to get the thread started. I used pliers to grab t