For the price you can of course expect a magic instrument, however, ought to be able to assume that a 1/4 "thread is pre-drilled with the producer! That was not the case with me and I think something like this should not happen and it has also not everyone, like me, the corresponding tap home. Mine is now okey and I use it when the thread is time available, you can not complain, on the part is as good as it should be.
