2.5mm ID hose barb.

Lightweight aluminum 1/2" diameter handle for continuous 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. Designed for external vacuum release. 5 1/4" (133.35mm) long, 1/2" (12.70mm) diameter.

This product requires a continuous vacuum source.