HHIP bxa Series wedge Type steel quick change tool post is working parts are hardened and ground. Completely sealed for maintenance-free operation. Interchangeable with Aloris and Dorian same Series. Specification: a: 1.65", b: 1.41", D: 0.411", a: 3", b: 4-5/8", C: 2-3/4", D: 5/8", E: 1-5/8", H: 5-9/16", R: 7-5/16", swing capacity: 10" - 15".