This tool features a custom, stainless steel, hollow handle that is designed to fit 6mm (1/4") hose sets. The graphite head tapers from 5mm (3/16") to 30mm (1-1/4") and is approximately 38mm (1-1/2") in length. The head features a 3mm through hole to blow. Overall tool length is 400mm (15-1/2") and features our custom heat, chemical and flame resistant handle cover.