Reusable fittings are only used on hoses with braided steel reinforcement, type 1SN and 2SN.
Ferrules are available for both the skive and non-skive assembly. Fittings in dimensions from 1/4" to 1".
Reusable fittings are recommended for hydraulics with moderate pressure and where you need to assemble hose pipes without assembling equipment. Remember that a good assembly requires accuracy.