Hand tools (including hand tools of a kind used in agriculture, horticulture or forestry, hand saws, files, pliers and metal cutting shears, hand-operated spanners, blow-lamps and clamps); interchangeable tools for hand tools or for machine tools, including dies for drawing or extruding metal, and rock drilling or earth boring tools; knives for machines; plates, sticks, tips and the like for tools, unmounted, of sintered metal carbides or cermets