45 Rol-Air Flaring Tools, 3/16, 1/4, 5/16, 3/8, 1/2, 5/8 in Faceted, hardened steel Cone rolls out perfect 45 flares above die block, and automatically burnishes flare face reducing the need for deburring Original wall thickness is maintained at base of flare New slip-on yoke permits use in tight quarters,