I got a set of callipers from Lidl something like 10 years ago. They've been great to use – smooth and accurate and are still going strong. No real difference in feel or accuracy to the Mitutoyo ones at work. I saw them come up in Aldi last year, so picked up a set as a backup.
They new ones are absolute *crap*:
Very rough action;
Poorly ground (a rough, rather than a satin surface);
FULL of grinding grit and residue (absolutely black with it inside);
Not really hardened (I know you shouldn't do it, but scribing with the tip of the jaws bends them – I've been getting away with that on the other set for years with no visible effect…)
When you close them fully, the internal jaws catch on each other when you open them again.
The reading varies a lot with jaw pressure,
The new ones remember their setting when "off" which would be handy for poor men's DROs (whereas the old ones reset their zero whenever they're switched on).
Shortly after, I picked up a set of callipers from Lidl and was equally unimpressed
Full of grit and really badly finished. They're not the same as the Aldi ones, but of an equivalent standard.
My 'good' ones (that I though were Aldi) turn out to be old Lidl ones (circa 2007).
From top to bottom: Old Lidl, current Aldi, current Lidl:
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Old (good) Lidl after 10+ years of abuse. If you run a fingernail across the closed jaws, you can barely feel the joint.
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Current Aldi (new) – you could trip over the step between the jaws…
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Current Lidl (brand new) – likewise, there is a pronounced misalignment of the jaws.
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What the pictures don't really show is the difference in the 'ground' surfaces. The old ones are satin smooth with flat surfaces and square corners – not much different from Mitutoyo ones at work. The newer ones (Aldi & Lidl) are rough and uneven – I doubt that they're ground – more like waved past a belt sander.
I took the Aldi ones to pieces to clean the grit out and stone off the burrs – the grey is loose grit (& look at the grinding on the jaws!):
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Inside the current Lidl ones (I didn't take the back off, just slid the jaw out). Grit again (this is straight out of the box – they haven't even been in the shed yet).
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I cleaned them up as best I could without taking the back off (which means peeling the label on the rear back) as I was thinking of returning them. They still feel like cheap callipers, but at least they don't make your teeth itch every time you move them.
The battery in the old calipers lasts for years; I've had to change the batteries in the newer ones several times in the last year.
Not the bargain that they once were IMHO.
('current' in my description was ~ May last year)
Edited By Andy_G on 03/10/2022 09:43:10