Jacob’s 33BA 5/8-16 Internal Thread, Drill Chuck 5/64 To 1/2″ Opening With Key
33BA 5/8-16 mounting thread. Qty 1 per order. chucks and chuck key. This is for 1 chuck and key. JACOBS Chuck. It’s from a Milwaukee drill. 5/64″ – 1/2″ Capacity with K-32 Key included.