No. 458 These RIDGID Flaring Tools give smooth, uniform flares. Large comfort-grip feed screw handle turns easily. Hardened steel flaring cone, eccentrically mounted in needle bearings, produces rolling action for even metal flow - gives uniform flare walls without galling. Feed releases when flare is fully formed. Tubing hole sizes are clearly marked. Yoke clamp screw fits into centering hole - locks bars, yoke and tubing into alignment. Flares steel, stainless steel, hard copper and brass tubing through a wall thickness of 0.035".