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US Patent: 2,358,077
Auger bit
Patentee:
Albert C. Koett (exact or similar names) - Cincinnati, OH

USPTO Classifications:
408/213, 408/214, 408/223

Tool Categories:
woodworking tools : hand drills : drill bits : auger bits

Assignees:
Kett Tool Co. - Cincinnati, OH

Manufacturer:
Kett Tool Co. - Cincinnati, OH

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 09, 1943
Granted: Sep. 12, 1944

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Kirk Eppler
"Vintage Machinery" entry for Kett Tool Co.
Description:
This auger bit design is especially intended for drilling larger sizes, greater than one inch, without requiring excessive power. It uses a fine-pitch lead screw, e.g., 32 TPI, and with a relatively long straight section to pull the bit through the hole without stripping. The lead-screw has one or more flutes so that it cuts rather than compresses the wood being drilled. The auger portion is of conventional construction.

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