Steelex 5in 3-Jaw Chuck

Steelex 5in 3-Jaw Chuck. 865" bore features semisteel bodies with plain backs. Includes two sets of jaws a wrench and mounting screws. Requires a mounting plate. For those of you who are not familiar with chuck mounting "plain back" means that a backing plate is required to mount the chuck to your lathe. Since there are so many different types of spindles on lathes you would require a back plate that fits your lathe spindle and then mount the chuck to the plate. The mounting bolts go through the