Tool bit
AssigneeMilwaukee Electric Tool Corporation
InventorRoger D. Neitzell
Life of this patent
Estimating the term…
Abstract
A tool bit includes a hexagonal drive portion, a working end, and a shank. The working end is made of a first material and a has a first hardness. The shank connects the drive portion to the working end. The shank defines a longitudinal axis about which the tool bit is rotatable. The shank is made of a second material having a second, different hardness. The shank includes a protrusion and an annular shoulder. The shank extends within a portion of the working end and has a distal end. The annual shoulder surrounds the protrusion. At least one of the distal end or the shoulder is oriented perpendicular to the longitudinal axis.
Claims19
A tool bit comprising:
- a hexagonal drive portion;
- a working end made of a first material having a first hardness;
- and
- a shank interconnecting the drive portion and the working end, the shank defining a longitudinal axis about which the tool bit is rotatable and being made of a second material having a second, different hardness, the shank including a protrusion extending within a portion of the working end and having a distal end, and
- an annular shoulder surrounding the protrusion, the annular shoulder defining a rearmost stop against which a terminal end of the working end is abutted, wherein the working end does not extend beyond the annular shoulder, and
- wherein at least one of the distal end or the shoulder is oriented perpendicular to the longitudinal axis.
A tool bit comprising:
- a hexagonal drive portion;
- a working end made of a first material having a first hardness;
- and
- a shank interconnecting the drive portion and the working end, the shank defining a longitudinal axis about which the tool bit is rotatable and being made of a second material having a second, different hardness;
- wherein the working end includes a blind bore in which a portion of the shank is receivable and an annular working end shoulder surrounding an opening of the blind bore, the annular working end shoulder is abutted against an annular shoulder surrounding the protrusion, wherein the working end shoulder is oriented perpendicular to the longitudinal axis, wherein the working end does not extend beyond the annular shoulder, and wherein an interior surface of the blind bore is oriented perpendicular to the longitudinal axis.
A tool bit comprising:
- a hexagonal drive portion;
- a working end made of a first material having a first hardness;
- and
- a shank interconnecting the drive portion and the working end, the shank defining a longitudinal axis about which the tool bit is rotatable and being made of a second material having a second, different hardness,
- wherein the shank includes a distal end oriented perpendicular to the longitudinal axis, an annular shoulder at a perimeter of the shank, and a cylindrical portion between the shoulder and the distal end, wherein the working end includes a blind bore receiving the distal end and abutting against the shoulder, and wherein the working end does not extend beyond the annular shoulder.
Dependencies are inferred from the claim text.