Exair® High Power Cold Gun Coolant System w/Dual Point Hose, 30 SCFM - 5330 - 99-001-273 Twice as much cooling as ordinary cold guns! Replace messy mist systems - improve dry machining with clean, cold air. A steady stream of cold air helps prevent burning and wheel loading, while extending tool life on dry machining operations. Operates on shop air without moving parts and no electricity. Features: A flexible hose directs cold air stream to the precise point of heat build-up while clearing chips away. Produces a stream of cold clean air at 50°F below air supply temperature. Magnetic base provides fast, easy mounting.