The facom v345f straight compact die grinder is compact and fast making it ideal for material removal such as aggressive sanding and grinding it has a built in air regulator which can be adjusted with a screwdriver and a feather teasing trigger for optimum control the too has a lightweight design for easy manoeuvrability and the 6mm collet allows for easy placing of grinding wheels stones and other attachments it is recommended that you use this tool with an air hose that has an inner diameter o