Imagine a butcher with a blunt knife! A hairdresser with no scissors! A footballer without…….well that one doesn’t really work!! You get the point though as an electrician your only as good as your tools everyone differs Jon like dewalt power tools such as a multi tool (whoever invented this tool is a genius) battery circular, Sds drill, impact driver whereas Geoff who thinks he’s posh has the most expensive tool brand which is Milwaukee (show off) we both have the fluke multifunction tester to test all of our work upon completion then all results are filled in on our company iPad and registered.  Hand tools again are preference we both, like most sparkies use ck screwdrivers and pliers. Hand tools are all replaced pretty much yearly as the start going blunt over time.