I don't see it. - I think self drilling screws are much more of a timesaver. - Drill driver combis cannot have the same durability than separate bits, since d

I don't see it. - I think self drilling screws are much more of a timesaver. - Drill driver combis cannot have the same durability than separate bits, since driver bits are made of softer or at least more springy steel than drills. - Also the sharpness of the combi can be a problem for the screw. - Also torx bits will not jump over, while philips will now and then, and hence wear out more quickly.