detail of human hand with digital micrometer

16x9 accuracy adjustable background bearing black blue brass bronze button caliper closeup component copy detail device digit digital display distance electronic engineering exactness finger gauge gray green grey hand hold human industrial industry instrument lathe machinetool machining machinist manufacture measure measuring mechanic mechanical metal meter micro micrometer micrometre millimeter nail number operator part precise precision quality shaft silver size skill skilled space steel technical technology tolerance tool turner white work worker workpiece workroom yellow