US Patent: 38,119
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Improvement in Drill-Bits
Twist Drill Bit
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Patentee:
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| Stephen Ambrose Morse (exact or similar names) - East Bridgewater, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Apr. 07, 1863 |
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Jeff Joslin (dm)
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Description: |
| Orientation and configuration of the flutes designed to produce a straight cutting edge, with an acute included angle, so that it cuts, rather than scrapes, the metal being bored. |
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