I think it is unfair on Locksmiths to refer to it as such. It is a
convenience service that offers, shoe repairs, engraving, key copying, and
similar.

Can be pricey - went with wife to one for a watch battery - they quoted
£10;95. Got home and found I had a battery of the right size on the 20 for
£1 card. Popped it i and the £5 Asda watch is working again.