Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools (non-abrasive sharpening devices for scythes, sickles, or the like A01D3/00; sharpening devices designed as components of machines with cutters, see the relevant places for the machines, e.g. A01D75/08, B26D7/12; sharpening of saw teeth B23D63/12; sharpening of files or rasps B23D73/00; grinding of die-stocks or chasers B23G1/36)

Child Classifications

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• B24B 3/003
• B24B 3/006
• B24B 3/02 of milling cutters
• B24B 3/16 of broaches
• B24B 3/18 of taps or reamers
• B24B 3/24 of drills (by fluting the shank B24B19/04)
• B24B 3/34 of turning or planing tools or tool bits, e.g. gear cutters (B24B3/36 takes precedence)
• B24B 3/36 of cutting blades (B24B3/58 takes precedence)
• B24B 3/55 of knife bars for harvesting machines
• B24B 3/56 of slicing bands (B24B3/58 takes precedence)
• B24B 3/58 of tools having scalloped cutting edges
• B24B 3/60 of tools not covered by the preceding subgroups