The DEWALT twin plastic sleeved keyless chuck can be used with both corded and cordless drills with the following specifications:

Fitment: 1/2 inch x 20 UNF.
Chuck Capacity: 13mm.

The DEWALT DEWDT7012QZ keyed chuck can be used for corded and cordless drills and has the following specifications:
Chuck capacity: 13mm.
Fitment: 1/2 inch x 20 unf.

The DEWALT DT7021QZ Chuck Key has a universal design with a clamping range of 10-13mm.

Specification:

Size:  Ø 10 x 13mm (S2)

The DEWALT SDS-Plus 1/2in x 20 UNF chuck adaptor. This adaptor is for connecting a standard 1/2in x 20 UNF chuck into an SDS+ drill.
It comes with screwdriver bit.

Specification:

Weight: 60g.

This DEWALT Keyless Chuck is a professional, heavy-duty chuck with carbide jaws for extra grip. It is suitable for DEWALT and other makes of drills.

Capacity: 13mm.
Fitment: 1/2 inch x 20UNF.