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
GAS-4
The history of "picaporte" in our country, opened the car GAZ-4 with a lifting capacity 0,5 t, launched the series in 1933. The development of machine production did not require much...
CASE-UNIVERSAL
There are several classes of ship modeling, in which the apparatuses have very small external differences. So, very similar model classes F1V-15, FSR-3,5, FSR-6,5, F1V-5 and F1-E. "Why...
