Handle torque can be conveniently set directly via push button integrated in handle ergonomic plasticmetal compound handle of quality robust materials handle sizes proportioned to optimise torque setting distinctly audible and perceptible click signal when set toque is reachedstandards en iso 6798 bs en 26789 asme b10714maccuracy 6 traceable to national standardsholder torque bit universal holder exchange blade for accommodating c 63 and e 63 14 bits included in delivery