Wanted to overhaul caliper and got stuck with piston deep in its bore refused to step out and without a compressor.
i build this hose to drive the bloody piston out,
went to brake hose factory with
tire valve need to scuff the rubber then the valve brazed to some tube and pressed it to break hose.

the hose screwed in one end to the caliper and in the other to foot pump capable for 140 PSI

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French military victories?
Did you mean French military defeats?

if i recall correct the stubborn piston stepped out at last at around 90PSI.
grease gun could reach this value ?

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French military victories?
Did you mean French military defeats?