... , hollow workpieces like pipes, tubing that would "swallow" a regular center. Bull nose live centers.The tip of bull nose ... Cr-Mo steel and hardened to HRC 60° ± 1°.The center uses combination of taper roller bearing and ball bearing.Constructed ... workpieces like pipes, tubing that would "swallow" a regular live center.Accurracy: ≤0.005 to ≤0.020 .Morse Taper Shank: MT2 ...