This 3 inch 3-Jaw self-centering lathe chuck is the one that comes on the mini lathe. It includes a chuck key and inside and outside jaws.
This three-jaw chuck has a 0.63″ (16 mm) through hole. It holds work up to 2.48″ (63 mm) 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.
