This standard flaring tools features a convenient screw yoke that slips quickly over bars without removing heavy-duty wing nuts Yokes have a free wheeling 45° plated cone for faster,smoother flaring and greater strength inflaring copper, aluminum, brass and thin wall tubing Large heavy-duty hardened feed thread for durability; Long sliding T-handle provides maximum leverage Quick opening plated bars for easy insertion and removal of tubing; Sizes are individually marked on bars, capacity of 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, and 5/8 inch Extra long bars to fit in vice, for easier flaring; Features a cast iron yoke