Periodically remove and wear protective gloves while working with tools is not very convenient. The only way out is make a slit, Kai is shown in the figure, the window optionally closed with a flap with Velcro fastener “lipuchki”.
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Punching in the sheet material of large diameter or curved forms used by drilling on the contour. However, the punching of the centers of the "contour" hole requires accuracy and is time...
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Instead of the usual wooden pegs were the same, but the plastic that slid more than the former and thus hold somewhat worse. To increase their reliability can be invested inside as shown...
