In the practice of the house master often there are cases associated with loosening or tightening of screws of large diameter. Without the “powerful” screwdriver not to do. Equip her with a pen, as shown and work with it will be much easier.
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GRINDS DRILL…
Getting a smooth surface — a long and laborious process. Cut it will help the sanding attachment on a drill, which is a cylinder with an oblique gap, which made the ends of strips of sandpaper.
UNIVERSAL STAND
It is often necessary to break in the motor to measure rpm and fuel consumption. To set this engine on the model is optional. In aeromodelling circle of secondary school No. 112 in the...
