3/8" Hose x 3/8" Female JIC Reusable Hydraulic Hose Fitting - Works with R1/R2/R16 Hydraulic Hose. Crimper machine/tool not needed Reusable hydraulic hose fittings are typically used to repair damaged fittings in existing hydraulic hose assemblies and help reduce downtime of hydraulic systems. Also known as field installable fittings, they attach to compatible hydraulic hoses and are tightened with a wrench. These fittings are suitable for connecting hoses in hydraulics and general-purpose industrial applications to convey hydraulic fluid, air, and nonpotable water.