Magnifying Visors

What is the name for a handheld engineers magnifying glass?

Hi, I know this may sound vague, but I wish to find a type of magnifying glass. It's like a handheld one: with a vertical handle, it has quite a small lens and has little torch to illuminate the object being seen. I've seen them before at an aerospace engineering factory, where technicians used them for inspecting the surfaces of metal components. If you can decipher this description and give me a name, it would be appreciated. Thanks.

Public Comments

1. They are shop microscopes.
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