4MT Taper Shank #3 Jacobs Taper Chuck Arbor BoltsandNuts.com The plastic dividers are made

The plastic dividers are made of strong ABS plastic that is tough but not brittle

Part Number DWTSQ3816

Part Number DWT54280

Part Number DMS73-5017

Size 5/8"-20

4MT Taper Shank #3 Jacobs Taper Chuck Arbor BoltsandNuts.com The plastic dividers are madeProduct Description Drill chuck arbors are adapters used to mount drill chucks onto machine spindles or tailstocks. They provide a secure and precise connection between the drill chuck and the machine, ensuring accurate drilling operations. Drill chuck arbors are essential for accommodating various drill chuck sizes and machine interfaces in machining applications. Brand Drill America Part Number DEWA0403