Milling cutters being hand tools; Hand operated tools being countersinks; Hand-operated tools in the nature of rotary milling cutters; Emery grinding wheels; Abrasive discs being parts of hand operated tools; Grindstones being hand tools; Hand tools in the nature of grindstones; Sharpening wheels for knives and blades; Drill bits for hand drills; Diamond drill bits for hand-operated tools; Glaziers' diamonds being parts of hand tools; Hand-operated cutting tools being diamond cutting tools