Chapter *** 10 of this book mainly includes: the basic knowledge of locksmith, marking, sawing, filing, chiseling, scraping, drilling, sinking, reaming, tapping, threading, grinding and common processing methods. This book is concise and practical, focusing on operational skills. At the end of each chapter, there are appropriate skills assessment assignments to facilitate teaching guidance and inspection.

This book can be used as a teaching material for the practice of metal cold working technology for mechanical majors in higher vocational colleges, and also as a skill training material for junior and intermediate fitters and mechanical maintenance personnel.