Yes, The tap was new out of this package. I am no expert on tapping but I have tapped a lot of holes so go gently. Immediately I noticed that the material was not cutting cleanly but tearing in a gummy way. I tried to clear the tap and then continue but the tapped threads were terrible. I have not always had good results tapping aluminum especially die cast. Only thing I can think is maybe the tap is defective or the diecast material composition does not lend itself to tapped holes. I know that sounds strange. I did start the pilot in the remains of the threads. It followed them. Started cutting dry then tried lubricants but as I went forward tap continued to tear the material.
I appreciate your comment. Frustrating experience but we don’t win them all. 😀
Charlie