Watchmakers usually owned several pairs of tweezers which enabled artisans to pick up small parts, especially highly polished brass or steel pieces not to be touched by fingers. These little tools are still a very useful part of a clock- and watchmaker's kit, and the criteria for their selection today are probably similar to those of the Dominys'. The arms and spring action of tweezers should be firm, but not too strong, and their ends should be long and thin with the inside surface roughened slightly.