All ball end drivers are not created equally, my favorite brand being Wiha which are quite hard and last really well, though one has to consider that the contact area is less than a straight hex tool and wear can/will occur in the socket of any type of fastener that they are used in. Wiha also make straight hex tools as well as hex(socket) drivers and all their tools are superior to common allen wrenches or hex drivers from say Du Bro or Bondhaus etc...
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Last edited by geezeraviation; 09-07-2016 at 02:10 AM.