Double diameter boring tool
A method of boring two concentric holes of different depths is described utilizing an elongated boring tool having a tool axis of rotation, a longitudinally disposed tool centerline axis, and first and second transverse cutting edges at one end thereof extending across the boring tool, the second cutting edge being longitudinally rearwardly recessed with respect to the first cutting edge. The method consists of inserting the boring tool into an adjustable boring head, adjusting a distance B between the tool centerline axis and the tool axis of rotation such that the tool axis of rotation intersects a first boring area of the first cutting edge; and boring the concentric holes having respectively larger and smaller diameters.
- Assignee:
- Dept. of Energy, Washington, DC
- Patent Number(s):
- US 4793745
- OSTI ID:
- 6228674
- Resource Relation:
- Patent File Date: Filed date 10 Feb 1986
- Country of Publication:
- United States
- Language:
- English
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