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.
Recommend to read
Manual Concrete Mixer
Prepared cement mortar needs constant mixing, otherwise it hardens quickly. But that is easier said than done; doing this work by hand is extremely tiring — it is hard to lift a shovel...
TORPEDO, GUN OR MINE?
Fighting submarines "against all" (and basically struggle with the poor merchant ships), turned around after only a few months after the outbreak of the First world war. For four years,...
