"Locksmith's Handbook" contains basic information on the metalworking of machine and instrument parts. The materials of the reference book are given in the form of tables with illustrations indicating the most rational methods and techniques of metalworking. The handbook is intended for locksmiths, foremen and foremen of mechanical assembly shops. It can be useful for locksmiths of tool and repair shops, as well as engineering and technical workers - technologists, normalizers, etc. The reference book can be used when training locksmiths in the factory training system.