We offer the 4281F series of contacts from CNC Tech in three sizes.
16-18AWG 4281F1618-99 CNC Tech | Connectors, Interconnects | DigiKey
18-22AWG 4281F1822-99 CNC Tech | Connectors, Interconnects | DigiKey
24-28AWG 4281F2428-99 CNC Tech | Connectors, Interconnects | DigiKey
The crimper for all three sizes is DL-108B CNC Tech | Tools | DigiKey