Allstar Koul Tool Kit for -6 AN to -10 AN Fitting/Hose fits -8an though -10an fittings and hoses. The koul tool kit eases a braided hose and fitting assembly. The fitting should be inserted into the specially designed holder which then helps to guide the hose into the fitting. The kit includes all tools, fitting adapters for most fittings, detailed assembly instructions and also a high quality storage case. Koul tools are not meant for use with style hoses..