It is not precise or made from quality material. Looks more like a plug tap with a flute thread. The m5 tap broke on an aluminum extrusion that was pre-drilled with 4.2mm holes. Additionally, the hole was plug tapped and cleaned prior to using the flute. Yes I know how to tap correctly, it worked on about a dozen or so profiles before breaking.
Rating:
[5 of 5 Stars!]