American STANLEY No 47 Bit Gauge Depth Stop
A little used or possbibly unused STANLEY No 47 bit gauge depth stop.
Marked 'STANLEY NO.47 MADE IN U.S.A.' on the adjusting wheel with 'PAT.PEND.' on both sides of the body.
Designed to clamp on most auger bits from 3/16 inch upwards.
53/4 inches overall length.