Grinding the rounded corners of the distribution box
If you want a rounded-off corner, hold the grinder to the metal at a 5 or 10-degree angle so the sparks fly away from the corner. There are many brands of air-driven belt sanders and you should be able to find one that is price reasonable for your shop. Abrasive belt grinder for the cleaning of corner welds and for the creation of spokes on rectangular pieces such as boxes, at double speed it allows to work angles of maximum height 145 mm on a support surface adjustable in height and inclination. But with the right tools and abrasives, it can actually be much simpler than it sounds. Primary burr, spatter, unevenness and/or scale layers are usually removed with abrasive belts, discs or sheets.
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