Hi These mini ryder folding tools work great as Allen keys, I use them on bikes every single day. You just need to get loose long 8mm & 10mm allen keys for crank bolts(if your bike still has them). I just replace them every few years, at a cost of R50-R90 it's the best bike tool investment. Buy a good Chain whip and Chain breaker, Park Tool will be my choice. The rest, anything will do, except if you still need a crank puller... Sorry, I don't sell any of them, just my personal opinion.