Explanatory notes
… weight, size, etc., obviously cannot be used in the hand as described above. It also excludes tools (whether or not … machines on wheels, e.g., floor grinding machines, for concrete, marble, or wood, etc. The heading further excludes … Boring machines, rock drills and the like. (3) Wrenches, screwdrivers, nut setters. (4) Planing, gauging, surfacing …