US Patent: 1,241,176
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| Drill or boring member
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Patentee:
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| Harry J. Watts (exact or similar names) - Turtle Creek, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 01, 1916 |
| Granted: |
Sep. 25, 1917 |
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Jeff Joslin
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Description: |
| The inventor was a British citizen. "This invention relates to drills or boring members designed primarily for forming polygonal shaped openings, and has for its object to provide a tool of such type... with eccentric end cutting edges and further with means to prevent clogging of the chips during the operation of the tool..." |
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