2.5mm ID hose barb.
Lightweight aluminum 1/2" diameter handle for continuous air vacuum handling systems. A 2.5mm inside diameter vacuum hose connects at the rear of the tool. Vacuum tips attach to the front of the tool. Covering and uncovering the hole enables the vacuum to grasp and release the part. 5 1/4" (133.35mm) long, 1/2" (12.70mm) diameter.