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US 8,418,587 B2Granted
Tool bit
AssigneeMilwaukee Electric Tool Corporation
InventorJoseph M. DeBaker
Life of this patent
Estimating the term…
Abstract
A tool bit includes a hexagonal drive portion, a working end, and a shank interconnecting the drive portion and the working end. The shank includes an outer peripheral surface having a curvature in a plane including a central axis of the tool bit. The outer peripheral surface having the curvature includes a length in the direction of the central axis. A ratio of the length of the outer peripheral surface having the curvature to the length of the tool bit is between about 0.2:1 and about 0.7:1.
Claims12
A tool bit comprising:
- a hexagonal drive portion;
- a working end;
- and
- a shank interconnecting the drive portion and the working end, wherein the shank includes an outer peripheral surface having a curvature in a plane including a central axis of the tool bit, wherein the outer peripheral surface having the curvature includes a length in the direction of the central axis, and wherein a ratio of the length of the outer peripheral surface having the curvature to the length of the tool bit is between about 0.2:1 and about 0.7:1, wherein the shank is polished along the entire length of the outer peripheral surface having the curvature, and wherein the hexagonal drive portion and the working end each include a corrosion-resistant coating.
1 more element
Dependencies are inferred from the claim text.