Hi John Use 2 wrenches like Phil said. I like the 2 wrench system. I made a set of offset thin wrenches for my Hitachi M12V to work better in the table mounted set up ,it uses the same type system. I cut the wrenches out of cold rolled plate steel and then case hardened them. I am on the road setting up at fairs so I can't send you a picture. I will be back home in a few weeks if you like I can send you a picture of the wrenches I made.