DRILL CHUCK ARBOR: MT4 X JT3 D/BAR THREAD M16

* Drill chuck arbors are hardened and precision ground
* These drill chuck arbors are threaded so they can be used with a draw bar
* Most commonly used with Drilling and Milling machines
* The draw bar keeps the arbor firm in the taper
* This arbor has a JT3 taper which is common taper for 16-20mm drill chucks