The following would be a suggestion:

Farnell:

Crimp tool – 1734779
0.5mm Ferrule – 9972072 (Pack of 100)
0.75mm Ferrule – 9972080
1mm Ferrule – 1269361
1.5mm Ferrule – 9972099
2.5mm Ferrule – 9972102

CPC:

Crimp tool – TL11632
0.5mm Ferrule – CN12626 (All Pack of 100)
0.75mm Ferrule – CN12627
1mm Ferrule – CN12628
1.5mm Ferrule – CN12629
2.5mm Ferrule – CN12630
4mm Ferrule – CN12631