Independent comparisons. We may earn from shop links. More info

Best dial caliper

Updated: 22 October 2026

You have already decided you want a mechanical dial, and you want one of the three tools on the [Dial caliper](/hub/measuring-and-marking-tools/dial-caliper) table rather than a lecture on how to add the beam. Best here means best for a stated job inside this amazon.co.uk set, on prices captured on 20 October 2026. It does not mean a laboratory winner, and it does not mean the best caliper of every kind. Digital models dominate many best-seller lists because they are easier to glance at. They are not in this table. Peter F. used those listings. A qualifying purchase can earn a commission at no extra cost to you.

You have already decided you want a mechanical dial, and you want one of the three tools on the Dial caliper table rather than a lecture on how to add the beam.

Our top picks

Mitutoyo Mitutoyo 505-732 dial caliper

Best overall

Mitutoyo Mitutoyo 505-732 dial caliper
9.3/10about £86.71
View offer
Standard Gage Standard Gage dial caliper, 150 mm

Best value

Standard Gage Standard Gage dial caliper, 150 mm
9.3/10about £45.99
View offer
Hyuduo Hyuduo plastic dial caliper, 150 mm

Alternative

Hyuduo Hyuduo plastic dial caliper, 150 mm
5.4/10about £12.71
View offer
On this page
  1. 1.Best value in this set
  2. 2.The Mitutoyo listing
  3. 3.The dial to skip for a real size
  4. 4.Who should buy neither

Best value in this set

The best value in this set is the Standard Gage 150 mm dial (ASIN B0DB29M9M7) at £45.99. The bullets state 0–150 mm, 0.02 mm and ±0.02 mm, in stainless steel, with inside, outside, depth and step, a lock and a knurled roller. The listing weight is 176 g. Amazon shows 4.6 from 80 reviews. Reviewers praise a smooth slide, a clear dial and no battery. One review describes the gearing as an inch layout remarked for metric, so one needle turn is 2 mm. You have to add the beam with that turn in mind, which the how to read a dial caliper page covers. You cannot prove ±0.02 mm at home: the same reviews say there was no reference standard. The title says a case and the bullets say a padded bag. Skip it if you need a 1 mm-per-turn face already matched to the maker, or a certificate.

The Mitutoyo listing

The conditional top pick is the Mitutoyo 505-732 listing (ASIN B0142HWZSG) at £86.71, and only if you confirm the seller against Mitutoyo's own description. The range bullets say 0–150 mm, and the display is non-digital. Amazon shows 4.6 from 149 reviews. In the first 50 review texts the dial is yellow, marked in 0.01 mm, with one full turn per millimetre. Reviews also say no battery is required. The listing accuracy line is 0.002 in, and the weight field says 198 g. Mitutoyo UK's own 505-732 page states 0.01 mm, 1 mm per revolution, ±0.02 mm external error, 176 g, and £168 including VAT. £86.71 is not that shop price. None of the first 50 review headers says Reviewed in the United Kingdom. Those texts include a needle that was not attached, a rattling slider, a zero about 0.03 mm out, and lock screws that needed pliers. If the page in front of you still states 0.002 in, you are not looking at the shop specification.
Mitutoyo Mitutoyo 505-732 dial caliper

Testsieger

Mitutoyo Mitutoyo 505-732 dial caliper
9.3/10about £86.71
View offer

The dial to skip for a real size

Skip the Hyuduo plastic dial (ASIN B07TM8JKXT) when the job is a machined metric fit. It is listed at £12.71 and 91 g. The material field says PLA and PE, and the accuracy field says ±0.05 mm. Amazon shows 2.7 from 25 reviews. Several United Kingdom reviews say the yellow dial reads inches, one turn per inch. One UK reviewer then received a white dial under the same description, one turn per 10 mm with 0.1 mm marks. Other UK texts call it inconsistent or toy-like. One unit arrived broken. Keep it only if you want to watch a needle move and you will read the face first. The split between an inch face and a metric dial that turns 2 mm per revolution is on metric or imperial dial caliper.

Who should buy neither

Buy none of these three if a drawing requires a traceable check. None of the listings shows a UKAS certificate. The RS PRO 150 mm, at £148.92 including VAT, states 0.02 mm and a UKAS option. Allendale's collection page has priced a Machine-DRO 150 mm dial at £24.84 including VAT and a Mitutoyo 505-732 at £126 including VAT. Those are other shops, not rows in this table. If you cannot read a 2 mm-per-turn dial, the £45.99 tool will frustrate you even though the bullets are metric. Choose a 1 mm-per-turn face only after the seller matches the maker's page.

Common questions

Which dial is the top pick in this set, and for whom?
The top pick is the Mitutoyo 505-732 listing, B0142HWZSG, at £86.71, for a reader who wants the model name and will check the seller against Mitutoyo UK's own 505-732 description. Reviews describe a 0.01 mm dial and one turn per millimetre. The listing itself states 0.002 in and 198 g, which is not the shop page's ±0.02 mm and 176 g at £168 including VAT.
Which listing is the best value?
The best value is the Standard Gage dial, B0DB29M9M7, at £45.99. The bullets state stainless steel, 0–150 mm, 0.02 mm and ±0.02 mm, and Amazon shows 4.6 from 80 reviews. It suits you if you can read a 2 mm-per-turn face and you do not need a certificate.
Why is the plastic dial not a pick?
The Hyuduo listing, B07TM8JKXT, is £12.71 and 2.7 from 25 reviews. United Kingdom reviews often say the yellow dial is imperial against a millimetre title, and one buyer later received a different white metric face on the same description. A low price does not repair a unit you cannot trust for a machined size.
Is £86.71 the Mitutoyo UK price?
No. £86.71 is the amazon.co.uk listing price in this comparison. Mitutoyo UK's own 505-732 shop page was £168 including VAT, with a millimetre error figure and a weight of 176 g. Treat each price as that shop's price.
What should you skip if you need a certificate?
Skip all three listings. None of them shows a UKAS certificate. If the drawing asks for a traceable check, use a supplier that states that calibration. The RS PRO 150 mm at £148.92 including VAT is an example of that trade shelf, not an Amazon row here.

Related pages

Dial caliper buying guide

Dial caliper

How to read a dial caliper: beam first, then the dial

Metric or imperial dial caliper: check the face first

Dial caliper vs digital caliper: a needle or screen

Sources

Public sources listed for this comparison, checked against the 20 October 2026 shelf notes. Prices, stars and review counts for the three ASINs are the amazon.co.uk figures in that set. We did not run a lab test.

  1. NPL MGPG 40, calliper guide (retrieved October 2026)
  2. BSI BS EN ISO 13385-1:2019 (retrieved October 2026)
  3. ISO 13385-1:2019 (retrieved October 2026)
  4. Mitutoyo UK 505-732 (retrieved October 2026)
  5. Mitutoyo dial caliper instructions (retrieved October 2026)
  6. Wonkee Donkee, reading a metric dial caliper (retrieved October 2026)
  7. RS PRO 150 mm dial caliper 307-4666 (retrieved October 2026)
  8. Consumer Rights Act 2015, section 11 (retrieved October 2026)