Here's how to fix a broken disc brake exhaust bolt for the purpose of blowing air on the disc brake system.
Disc brakes cannot function optimally if the brake system still has air in the hoses or in the calipers. So we need to get rid of the wind so that the brakes can work optimally.
and here's one way to get rid of air in the disc brake system if the exhaust nozzle is broken.

Just take the knowledge.
may be useful.

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