detail of human hand with digital micrometer

16x9 accuracy adjustable background black blue button calibrated caliper calipers chuck clamp closeup detail digit digital display distance electrical electronic engineering exactness finger gauge gray grey hand hold hole human industrial industry instrument jaws knurling lathe machine measure measuring mechanical metal meter metre micro micrometer micrometre millimeter millimetre nail number precise precision processing quality revolve rotate scale sepia silver skilled steel technical technology tolerance tool trade turn white work workpiece yellow