Adding to the now closed thread731-128581, what are some of your most used, non-electronic, tools and for what purpose? Some of the tools that are almost always in my pocket or close-by:
Finger nail/mechanical pencil - Surface roughness
SDS-0200 Carbide Probe (dia. 0.02") - Surface Defect...
Is it possible to detect, non-destructively, the forging grain flow within a steel (52100) bearing ball? Would heat treatments, such as post-forge Spherodize anneal and hardening heat treatments remove the grain flow?
Thanks!