I tend to drill them out and replace them with standard fasteners. Ends up cheaper than having 3 trays of obscure bits that still somehow don't fit. Pay close a

I tend to drill them out and replace them with standard fasteners. Ends up cheaper than having 3 trays of obscure bits that still somehow don't fit. Pay close attention to length however. Some laptops will ground out with a screw 1 thread too long.