Deluxe Brake & Fuel Hard Line Flaring Tool, 37 Degree AN. Deluxe 37 Degree AN Line Flaring Tool. Speedway Deluxe 37 Degree AN Line Flaring Tool. This is the tool you need to make the 37° flares required for AN fittings. Standard brake and fuel lines are flared at 45° which are not compatible with AN hardware. This tool forms stronger flares assured by a smooth, even radius formed at base of every flare with its precision machined chamfer. Plus, its also self gauging – just insert tube flush with top of die for accurate flare size. Hardened steel, chrome-finished cone makes exceptionally smooth, high-strength flares with a radius at base of. Flare – instead of the sharp angle formed by ordinary tools. Slip-on yoke permits use in tight quarters. Allows flaring where there is little space between nut and tube end. Feed screw design provides smooth, easier operation. Positive gripping and self-gauging of tube for exact flare size. Sliding die blocks lock in place by clamp action. Works on 3/16″, 1/4″, 5/16″, 3/8″, 1/2″ and 5/8″ OD tubing such as aluminum, copper, brass and mild steel. Learn more about flaring lines for our automotive fittings by reading our tech article. Made in the U. We recommend using this tool only on soft material lines. Extensive use on 3/16 or larger steel lines may result in wearing out the tool quicker. We recommend using a lubricant on the swedge. Part #91089528Degree of Taper37 degree. Any product you return must be in the same condition you received it and in the original packaging. We usually respond within 24 hours on weekdays.