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This collet chuck for ER-32 collets mounts on the lathe spindle in place of the lathe chuck or can be used as a fixture on a milling table.
ER-32 collets range in size from 3/32″ up to 13/16″ so you can run 25/32″ stock (the through hole on the lathe spindle is 0.800″) through the headstock of your lathe.
The outside diameter of the collet chuck is 100 mm. It has a 72 mm registration diameter and mounts with three M8 bolts on a 84 mm bolt circle. The concentricity of this chuck is 0.0008″ (0.02 mm).
*Collet must be assembled into a collet chuck nut before inserting into the collet chuck.