Test compression from lawn mowers to trucks; Includes 8" (20cm) flex hose with 14 & 18mm threaded end, 10, 12 & 14mm long adapters, straight extension, offset and straight adapters with tapered cones and gauge head with pressure release valve and threaded end; Gauge head is 2-1/2" (64mm) diameter with dual calibration (0-300 PSI / 0-21kg/cm²); Individual adapters available; 2012X10 - 10mm adapter; 2012X12 - 12mm adapter