Tool for keeping gap between formwork planks comprises square having long side with perforations and short side and plate welded to short side and collar with welded flat part

摘要

The tool comprises two complementary parts which are fitted into each other. The first part is a square with a long side, having perforations, and a short side and a plate forming a right angle welded to the short side. A second part comprises a sliding collar, a pin, a flat part welded onto the collar and an identical plate welded under the flat part.