Cutting tool for cutting and countersinking holes
AssigneeLink Industries, Inc.
InventorsJeffrey J. Veryser, Wayne Rocheleau, Dwaine D. Lee, John Grzebyk
Life of this patent
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Abstract
A cutting tool is configured to cut and countersink a hole in a workpiece. The cutting tool includes a shank and a fluted body extending along an axis. The body includes a tip, a chamfer in an axially spaced relationship with the tip and a cross hole with a proximal end opening to the chamfer. The body has a cutting section extending between the tip and the chamfer, and a countersinking section extending along the chamfer. At the cutting section, the body includes at least one hole-cutting edge. At the countersinking section, the body includes a scalloped countersink-cutting edge along a junction of the chamfer and the proximal end of the cross hole.
Claims20
A cutting tool, comprising:
- a shank extending along an axis;
- and
- a fluted body extending along the axis, the body including a tip, a chamfer in an axially spaced relationship with the tip and a cross hole with a proximal end opening in part to the chamfer, and in part to a flute, and having a cutting section extending between the tip and the chamfer, at which the body includes at least one hole-cutting edge, and a countersinking section extending along the chamfer, at which the body includes a scalloped countersink-cutting edge along a junction of the chamfer and the proximal end of the cross hole.
A cutting tool, comprising:
- a shank extending along an axis;
- and
- a body extending along the axis, the body including a pointed tip, a chamfer in an axially spaced relationship with the tip, two helical flutes extending between the tip and the chamfer, and along the chamfer, and a canted cross hole with a proximal end closest to the tip opening in part to the chamfer, and in part to one of the two helical flutes, and having a cutting section with a drill configuration extending between the tip and the chamfer, at which the body includes two radial chisel edges at the junction of the tip and the two helical flutes, and a countersinking section extending along the chamfer, at which the body includes a scalloped countersink-cutting edge along a junction of the chamfer and the proximal end of the cross hole.
A method of machining a workpiece, comprising:
- axially rotating a cutting tool with a fluted body;
- and
- concurrently with axially rotating the cutting tool:
- axially feeding a cutting section of the body, which extends between a tip and a chamfer thereof, into a workpiece, and thereby using at least one hole-cutting edge located at the cutting section to process a hole in the workpiece;
- and
- further axially feeding a countersinking section of the body, which extends along the chamfer thereof, into the workpiece, and thereby using a scalloped countersink-cutting edge located at the countersinking section along a junction of the chamfer and a proximal end of a cross hole opening in part to the chamfer, and in part to a flute, to countersink the hole in the workpiece.
Dependencies are inferred from the claim text.