Review on NordWolf 5-Piece Multipurpose Tungsten Drill Bit Set: 5mm, 5.5mm, 6mm, 7mm, 8mm, 10mm by Justin Santiago

These are not very versatile drills. They are masonry. You can see where the triangular tips have been welded because there is no coating and they have started to rust. I love the quick change base, but honestly how many quick changes would you have to do with masonry bits? They work on tiles if you walk slowly. The hole he left was clean and didn't break off a piece.