Currently, I'm having to put my backup backup plan into action; using a 1/4" chuckable 1.5mm driver from 4-in-1 set.
I've never used my super low budget 1.5mm hex driver that came in a four piece set. I've counted on my Integy 1.5mm driver for years to do the job. Well, the Integy driver's tip has given up on me during maintenance on a motor last year. I replaced that tip with one from the super low budget set. That tip was machined a hair too big, or the hard coating added girth, and will not fit into screw heads
.
One of these days I'll just give in and buy the "holy grail" MIP drivers that everyone raves about. For now, I'm happy with $3~$4 replacement tips like Integy, EDS, and Dynamite.