Having used this bit daily for a few weeks , it is not showing any wear on the cutting edge.
It drills through softwood and hardwood just as good as each other. Thicknesses is no problem as well, as having recently drilled 19mm holes through a 100mm thick mahogany top for a woodworking bench that I was producing. A total of 60 holes for the bench dogs layout,
A woodworking bit for anybody's toolbox. Cheap to buy and of very high quality an value for money. A Must.
Will definitely be back for more different sizes.