athe Chuck:
Diameter: 160mm(6.3")
Center Hole: 45mm(1.77")
Thickness: 65mm(2.56")
Bolt Circle Diameter: 142mm(5.59")
Runout: 0.002"
Internal Jaw Clamping Range (A-A1): 3-55 mm (0.12"-2.17")
Internal Jaw Jamming Range (B-B1): 50-160 mm (1.97"-6.3")
External Jaw Clamping Range (C-C1): 55-145 mm (2.17"-5.7")

Package Includes:
1 X 160 mm/6 Inch Lathe Chuck Body
3 X Internal Jaws
3 X External Jaws
3 X Mounting Bolts
1 X Safety Chuck Key