Why some lugs are crimped with less effort and some are crimped with more effort?
Efforts that a user needs to apply in the process of crimping depends on many conditions: the bigger a lug and a cable are the more efforts it takes to do the crimping. Other conditions are the hardness of materials used for lug and cable core. Sometimes in the search of lower expenses, manufacturers make lugs from harder material that is cheaper. Cables can be standard and annealed. Solid wires require more efforts than stranded wires. Hydraulic tools are more comfortable in use than mechanical crimpers. Handles in mechanical crimpers can be of different length, that can also influence the required efforts. Hex dies and v-shape dies can make an influence on the comfort of work as well.