Hand tools and hand operated implements, namely, clamps; hand-operated clamping tools, namely, screw clamps, bar clamps, one hand clamps, [ pipe clamps, spring clamps, cantilever clamps, toggle clamps, ] hand operated apparatus for clamping work pieces; hand-operated apparatus for securing work pieces; hand operated spreading tools, namely, screw clamps, bar clamps, one hand clamps, accessories for clamping and spreading tools, namely, protective pads, pressure pads