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US 8,800,407 B2Granted
Method of manufacturing a tool bit
AssigneeMilwaukee Electric Tool Corporation
InventorJoseph M. DeBaker
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a tool bit includes machining a working end into a piece of hexagonal bar stock. A shank adjacent the working end is machined, leaving a hexagonal drive portion adjacent the shank. The tool bit is heat treated, and a coating is applied to the working end, the shank, and the hexagonal drive portion of the tool bit to inhibit corrosion of the tool bit. At least a portion of the shank is polished to remove the coating from the portion of the shank.
Claims15
A method of manufacturing a tool bit, the method comprising:
- machining a working end into a piece of hexagonal bar stock;
- machining a shank adjacent the working end, leaving a hexagonal drive portion adjacent the shank;
- heat treating the tool bit;
- applying a coating to the working end, the shank, and the hexagonal drive portion of the tool bit to inhibit corrosion of the tool bit;
- and
- polishing at least a portion of the shank to remove the coating from the portion of the shank.
3 more elements
Dependencies are inferred from the claim text.