Dual threaded male end provides two adapters in one for compression at the spark plug ports on Ford Triton engines. 16mm x 1.5 and 12mm x 1.25 threads.
Provided with a long reach flexible hose to access recesses and around obstructions
Screws onto the 14mm-1.25 male thread at the end of the hose adapters – Works with most compression test kits