He’d learned.
Arjun held the metal rod in his calloused hand, turning it under the workshop light. The surface was smooth, cold, and perfect—or so it seemed to his naked eye. tolerance iso 2768-mk
She watched him make the final pass, chips curling like silver ribbons. When he measured again—29.99 mm, flat within 0.02 over the length—he nodded once. He’d learned