Conclusion: the stakes are of the hardness of the material certainly better than the stuff which included in Repair kits will cover etc. included.. Whether he gets to the hardness of proper works Zugen I can only partially assessed: since the goods come from China, I first of all do not believe that the quality of enstpricht as if it were from Würth :-)
Why only 3 stars? The Dreher grip in which the inserts are inserted rolls not centered thing when working unfortunately unpleasant notice.