They are now, to my knowledge, the only remaining UK manufacturer of standard use spanners left.
It's not until you start to break cheap spanners that you start to appreciate good quality tools. They last a lifetime and are less likely to damage bolt heads, especially the stubborn ones when you are applying a "little" more force.
My set built by up by buying one King Dick Spanner a month .... but I'm sad like that.
King Dick Metric Spanner specs:
Hot forged from 31 CrV3 Chrome Vanadium Steel
Precisely machined, heat-treated and nickel-chrome plated