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US Patent: 1,439,282
Twist Drill Gauge Gauge for Grinding Drill Bits
Patentee: Albert Washington Amsden (exact or similar names) - Athol, MA USPTO Classifications: 33/201 Tool Categories: layout tools : special purpose gauges Assignees: L. S. Starrett Co. - Athol, MA Manufacturer: L. S. Starrett Co. - Athol, MA Witnesses: William E. Cromer Walter L. Mayhew	Patent Dates: Applied: Mar. 02, 1922 Granted: Dec. 19, 1922 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: This is a simple gage used to check the angles and point location on a twist drill bit after grinding

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