Description: Five Way Coupling (Pneumatic tool) with aluminum socket; Coupler type: Japan/Nitto type; Description: Five Way Coupling (Pneumatic tool) with aluminum socket;Coupler type: Japan/Nitto type;Coupler material: Steel, Zinc alloy;Coupler size: 1/4", 3/8", 1/2" BSP thread;Socket material: Aluminum, with oxidated color; Five Way Coupling (Pneumatic Tool)