Spinners wrote:What is the exact type of screwdriver required for adjusting Shimano front and rear mechs?
Like most households, we have a good selection of cross head screwdrivers but I can't seem to find one that's a perfect 'Goldilocks' fit
The poster is looking for an exact fit screwdriver,personally I could understand a bit of humour but only after some good advice was offered first.
I too have been accused by Landsurfer of having no humour,as have a couple of other forum members.
Landsurfer perhaps your humour isn't coming across as such,that could be the fault of others not 'getting it' or perhaps it not coming across as humour in print but more as a dismissive couldn't give a ......
PS,I didn't know there was JIS standard screw head and have always used a pozi #1 Philips #2 size which seem to fit very well IME and I've never rounded one off or spoiled what I now know to be JIS head.
That said, I feel I owe the OP an apology for offering him/her the wrong advice.
We live and learn.