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- 3.1" diameter 4-Jaw independent chuck for larger work
- Clamping range: 3/32" (2 mm) to 1-1/2" (38 mm) diameter
- Hole through the chuck is .687" (17 mm)
- Hex key included
- Spindle Thread: 3/4-16
The larger Sherline 3.1", 4-Jaw Independent Chucks take maximum advantage of the size available on a standard Sherline lathe. This larger chuck takes up no more center-to-center space than the 2.5" chuck, but it will hold larger work. It has a clamping range of from 3/32" (2 mm) up to 1-1/2" (38 mm) diameter with the jaws in the normal position. With the jaws in the reversed position, work up to 2-3/4" (70 mm) can be gripped.
The hole through the chuck is .687" (17 mm). A hex key (provided) is used to tighten each jaw individually. A groove is machined around the base of the chuck so that angle clamps can be used to mount it to the table of a mill as a holding fixture. The chuck has a 3/4-16 thread to fit Sherline's spindle and other machines using that thread.