The drill chucks that work with this rotary hammer are of the SDS kind. You don't need to bother with a cord, since it runs on a rechargeable battery.
From OnBuy
Makita Cordless SDS Hammer Drill Brushless HR166DZ 10.8/12V Li-Ion CXT Body Only
ITS
Makita HR166DZ 12V CXT Brushless SDS+ Drill - Body
This product is also available at 2 unverified merchants.