5/8" X 2-1/2" Straight Shank Drill Chuck Arbor 4JT

The Morse taper end fits into a machine spindle and the Jacobs taper end is compatible with a Jacobs taper drill  Morse taper spindles are most often found on drill presses.

1. Manufactured from selected case-hardened steel, all arbors are case-hardened 54-58 HRC for increased resistance to wear