Tuercas, calibrador, pulgadas.

 https://www.areatecnologia.com/herramientas/tuercas-y-tornillos.html

https://mansiondelabelleza.com/wp-content/uploads/2022/01/CALIBRE_PARTES.jpg

https://i.ytimg.com/vi/jAvVebf0yP4/maxresdefault.jpg?sqp=-oaymwEmCIAKENAF8quKqQMa8AEB-AH-CYAC0AWKAgwIABABGH8gUigYMA8=&rs=AOn4CLBmR4xjoTefrIuW0hU6lPSBsE78ng

RRR

 https://responsabilidadsocial.net/3r-la-regla-de-las-tres-erres-reducir-reciclar-y-reutilizar/

https://www.eltiempo.com/files/article_content_new/uploads/2022/05/16/6282eb9e417f1.jpeg

https://pbs.twimg.com/media/E8IZloKWEAQQxls.jpg:large

Operadores Mecánicos

 https://auladetecnologias.blogspot.com/2009/03/simulacion-de-mecanismos.html

https://woodgears.ca/gear_cutting/template_es.html