A roll of soft rags or foam rubber, emery paper wrapped, simple and perfectly working device for sanding curved surfaces, whether wood or metal. And the same skin in combination with two plates in it, fortified at a right angle to each other, help out in cases when you need to sand the surface of the angle or corner joint of a part or product.
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THYRISTOR VOLTAGE REGULATOR
My thyristor voltage regulator (THREE) is easy in manufacture and adjustment, linearity regulation and high power output — 200 watts without heatsink and 1000 watt radiator cooling area...
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In the case when working with a drill and the hand key to tighten the Chuck, you'd get a screwdriver with a nail, an extra drill or any metal rod of suitable diameter. As they interact,...
