This Jacobs 31BA 3/8-24 Drill Chuck is a vintage product made in the USA. It is a Keyed Chuck with a Threaded Mount and is perfect for those in the CNC, Metalworking & Manufacturing industry. The Mounting Size is 3/8-24 and it is ideal for those looking for a reliable and high-quality drill chuck. The Brand is Jacobs and it is a great addition to any collection of drill chucks. This product is perfect for those in the Workholding & Toolholding category and is a must-have for those looking for a durable and efficient drill chuck.

**Most of my product come from business buyouts, garage sale buyouts, estate sales, machine shops, car service centers, as for the hardware most of it is new old stock (NOS) meaning its beee sitting on a shelf in new unused condition for several years. All are use and rarely abused.  If its non working I will disclose that info.  
**As with all used vintage tools please check all pictures for accurate condition.  if more pics are needed please request and I will do my best to respond in one to two days . I do not accept returns / exchanges on used tools. **I accurately describe each item the best I can buy I'm no expert. Please see pictures for condition and I alway try to have a photo of the part / model # on the piece. **The part in the pictures IS the part you will receive. All my parts listings are "as-is" IF I've been able to test the parts the listing will say so. **Please ask questions if you are unsure before you buy. Used, vintage tools are NOT guaranteed nor do they carry any warranty unless otherwise specified.
Combined shipping available  
All Sales are final - NO RETURS ACCEPTED.