Facilitates air line connections for brake testing on semi-trailers separated from a tractor, this air brake testing tool utilizes a glad-hand coupler for quick attachment. It incorporates a shut-off valve for manual flow control and a cushioned grip for handling. This tool allows technicians to perform brake system diagnostics without the presence of a truck or tractor.

Facilitates air line connections for brake testing on semi-trailers separated from a tractor, this air brake testing tool utilizes a glad-hand coupler for quick attachment. It incorporates a shut-off valve for manual flow control and a cushioned grip for handling. This tool allows technicians to perform brake system diagnostics without the presence of a truck or tractor.