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US Patent: 230,603
Countersink
Patentee: D. Fletcher Barber (exact or similar names) - Newton, MA USPTO Classifications: 408/200 Tool Categories: woodworking tools : hand drills : drill bits : countersinks woodworking tools : hand drills : drill bits : spoke pointers Assignees: None Manufacturer: D. F. Barber - Boston, MA Witnesses: William Zittel J. E. Maynadike	Patent Dates: Applied: Apr. 26, 1880 Granted: Aug. 03, 1880 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)
Description: Unique claim is for reversible cutters, allowing this bit to be used for spoke pointing as well as countersinking.

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