This handy tool significantly simplifies the assembly of brake and clutch hoses by spreading the braiding in order to seat the “olive” over the P.T.F.E. liner on -3 and -4 hose. It also ensures the liner is round post cutting making the fitting of reusable hose ends a breeze. To change between -3 and -4 simply unscrew the collar and reverse the mandrel in the handle.