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
CAREFUL THE WHEELS
To cut large office furniture comfortable when placed on the wooden trestles. However, in the process, the surface of boards can get scratched. To prevent this, wheels should attach a...
MINI-TRACTOR “PASHA”
Mini tractor built for a friend, a neighbor. The machine is designed for layout of the infield, clearing of snow from driveways and walkways, towing a cargo trailer. The engine and gear...
