What, however, is already annoying the fact that Wolfcraft is attributing normal countersunk screws, which means that it may come to tear the wells or the wood. Was even more annoying that after 2 workpieces (about 16-18 holes), the drill is abandoned. Something should in my opinion, after such a short life does not happen.
The backordered drill, also of Wolfcraft, also looks much more stable. (Psc = 1)
The concept itself, however, works well with the article, even if it is more expensive than it would be for example, with a set of Kreg.