The tool's teeth are perfectly matched to the tight tolerances of the joints. The tube can be separated from the quick connect fitting without removing the clamp. Made of brass, it not rust. Extra long service life and for money. Low profile disconnect tool fits 3/8Inch fittings on oil cooling lines. Usually used in transmission, radiator and other applications., Weight: 0.05070632026 pounds, Manufacturer: Xnuiasqe