IMO there is no need for the additional bit-set, the drivers are enough and rather a sharpening tool should be added. But the mat is quite useful, even the smell is horrible in the beginning.
Philip_VI've encountered a couple of knives that could only be opened by using 2 drivers at once on either end of the pivot or it would freespin. Also do you know of any decent sharpening tools that run about the same price as the bit driver set? I sure don't, so doing that replacement would jack up the price.
RelsekYeah you're absolutely right! I haven't had that in mind...
And I didn't mean a fancy sharpening system, rather a stone or just something that is more coarse than the leather.
But all in all I'm pretty pleased with that kit!