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For most woodworking purposes, the cheap mass-produced digital callipers are accurate enough. The problem with most of them (I won't say all, as I only have experience of two or three) is that, as others have mentioned, the battery is being drained even when you turn them off; the design is such that even though the lcd display is disconnected by the OFF button, the rest of the electronics stays connected & is slowly draining the battery. It's very annoying for an occasional user such as myself to pick up the callipers not having used them for a month & find the battery is dead.I switched to using the cheapish plastic dial callipers (ones in the £15-£30 range) - for my purposes, they are no less accurate than the cheap digitals, and much more convenient.
For most woodworking purposes, the cheap mass-produced digital callipers are accurate enough. The problem with most of them (I won't say all, as I only have experience of two or three) is that, as others have mentioned, the battery is being drained even when you turn them off; the design is such that even though the lcd display is disconnected by the OFF button, the rest of the electronics stays connected & is slowly draining the battery. It's very annoying for an occasional user such as myself to pick up the callipers not having used them for a month & find the battery is dead.
I switched to using the cheapish plastic dial callipers (ones in the £15-£30 range) - for my purposes, they are no less accurate than the cheap digitals, and much more convenient.