The fitter's operations mainly include chiseling, filing, sawing, marking, drilling, reaming, tapping and tapping (see thread processing), scraping, grinding, correcting, bending and riveting. Fiddler is the oldest metalworking technology in mechanical manufacturing.

Main tasks: mainly divided into the following parts processing, equipment maintenance, manufacturing and maintenance.

Expand the scope of data work:

It mainly includes marking, parts processing, assembly, equipment maintenance and innovative technology.

(1) marking lines are used to mark parts before machining.

(2) The manufacturing of parts that are not suitable for machining or can not be solved by mechanical methods, as well as all kinds of tools, fixtures, measuring tools and special equipment, should be completed by locksmiths.

(3) Assembly: According to the technical accuracy requirements of the machine, the processed parts are assembled to make it a complete machine.

(4) Equipment maintenance The parts of mechanical equipment that are damaged, out of order or lose precision after long-term use shall be maintained and repaired by locksmiths.

(5) Innovating technology In order to improve labor productivity and product quality, it is also an important task for locksmiths to continuously carry out technological innovation and improve tools and processes. In a word, locksmith is an indispensable job in the machinery manufacturing industry.