metallic vernier caliper. technical drawing. gear wheels

abstract accuracy analog background blue caliper calipers calliper circle closeup cog cogged cogwheel color component concept control design detail dial diameter distance documentation drafting drawing education engineering fabrication gauge gear gearwheel hand hatched hatching hole idea industrial industry instrument layout length machining measure measurement measuring mechanical metal metallic metalwork needle nobody number old part plan pointer precision product production professional quality repair round scale scheme silver size sketch steel technical technology thread tolerance tool vernier wheel white yellow