"KFJ Series 4-Jaw Chuck Four jaw wedge style power chucks suitable for irregular work pieces\r\n\r\nAll four-jaws move at once in a single actuation to enable gripping of square, rectangular or irregular work pieces . All sliding control surfaces are hardened and ground for accuracy and long service life with good repeatability.Mounting: Recess mount, requires additional adaptor.Standard Equipment:Chuck includes mounting bolts,T-nutsand jaw mounting bolts. Also included\u00a0blank Drawnut and mounting\u00a0wrench.KFJB 4 Jaw Large Bore Series".