The Twist-Lok Hose Assembly Tool from Russell helps with the assembly of Twist-Lok hose and end fittings. The vice end securely holds a fitting while the clamp end holds the hose. By twisting the screw drive, the tool pushes the assembly together. The tool comes complete with four inserts to allow compatibility with -4AN, -6AN, -8AN & -10AN hoses and end fittings.