I've got a posh mitutoyo set for work, and a cheap plastic set for home,
In both cases they are only as good as the batteries you put in them. £1 shop batteries last days, the last pound shop battery I fitted instantly made them display the low battery "B" warning!
Aldi ones are fine for occasional use, certainly good enough for use in identifying part sizes on a bike.
If you want to get fussy about accuracy when measuring fits during manufacture you don't use a vernier, you use bore gauges for holes and micrometers for o/d's
The nickname for verniers is "very nears"
In both cases they are only as good as the batteries you put in them. £1 shop batteries last days, the last pound shop battery I fitted instantly made them display the low battery "B" warning!
Aldi ones are fine for occasional use, certainly good enough for use in identifying part sizes on a bike.
If you want to get fussy about accuracy when measuring fits during manufacture you don't use a vernier, you use bore gauges for holes and micrometers for o/d's
The nickname for verniers is "very nears"