Blades for hand-operated rotary cutters; Chucks for hand-operated tools; Drill bits for hand drills; Grinding tips for hand-operated grinding wheels; Hand-tools, namely, wire crimpers; Hand tools, namely, clamps; Hand tools, namely, dicing blades, slitting blades, optically transparent blades, optically transmitting blades; Manually-powered hole openers used to enlarge holes in the ground; Tool holders