Review on Rokrou Countersink Drill Titanium Set - Premium 11PCS for Perfect Drilling Results by William Stewart

Decent countersink bit set for the casual hobbyist. Came in a case with a small Allen key. Technically it says 11, but that's five exercises. Pine drills quite well with a hammer drill, but hardwood can be more difficult to drill. The collar was fairly easy to adjust, didn't sag and didn't have large gaps between it and the bridle.