The 1.5 mm pitch JST ZH Crimp Hand Tools are for use with mini reeled and loose contacts. These ZH Hand Crimp Tools are light weight with a parallel ratchet action for crimping contacts onto single pieces of wire.
Crimp tool stock number 762-0954 is for use with ZH Contacts on a Mini Reel ( see stock number 762-0951 typical )
Crimp tool stock number 762-0957 is for use with loose ZH Contacts ( see stock number 762-0759 typical ) onto single pieces of 16 AWG, 18 AWG and 20 AWG wire.