3 inch, 4-Jaw self-centering lathe chuck for square or octagonal work.
The through bore of this chuck is 16 mm (0.63″).
The chuck can hold work up to 63 mm (2.48″) in diameter.
The radial runout of a test bar held in this chuck, when the chuck is mounted true, is 0.003″ maximum.
*NOTE: * Note Don’t forget to purchase a set of Studs & Nuts to accommodate changes in chuck or adapter configurations.

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