... rings and valves.3.Precise pressure gauge:0-30inHg,0-760mmHg.4.Negative pressure up to 635mmHg.5.Steel ... handle.6.Release valve.7.Include the parts of brake bleeder, ... contains a vacuum tube,a vacuum meter,a brake fluid reservoir and pipe joints,to be widely ... ,vacuum packaging and so on. Brass,negative pressure,brake pressure test kit,auto repair tools,TS8001