If the angular groove in the part requires the processing of a triangular file, but only one side with a notch (nearby to not participate in it), tape it temporarily any adhesive tape (e.g. Scotch tape or duct tape).
Recommend to read
GAZ-31105 “Volga”
Serial production of the GAZ-31105 "Volga" started on 18 may 2007. The interior of this model was developed by the specialists of the Gorky automobile plant in cooperation with German...
HYDRO CART “MUSTANG”
It was named a hydrocart, although it looks more like a kind of water motorcycle. This sports micro-vessel was built at the Donetsk Regional Young Technicians’ Station in the “Small...
