Skip header and navigation
DRILL BIT
- Material
- METAL-STEEL;
- Description
- Drill bit has a 14cm shank with a 2.5cm flat piece at end on either side. The actual drill piece has a 6.5cm twist and a raised 4cm collar with the following visible cast marks: 'PATENT APPLIED FOR THE WHITMAN & BARNES' 'MFG. CO., AKRON, OHIO' 'MADE IN U.S.A.' 'HERCULES CO.' in a flat diamond shape…
- Category
- TOOLS AND EQUIPMENT FOR MATERIALS
- Sub-Category
- METALWORKING TOOLS AND EQUIPMENT
- Description
- Drill bit has a 14cm shank with a 2.5cm flat piece at end on either side. The actual drill piece has a 6.5cm twist and a raised 4cm collar with the following visible cast marks: 'PATENT APPLIED FOR THE WHITMAN & BARNES' 'MFG. CO., AKRON, OHIO' 'MADE IN U.S.A.' 'HERCULES CO.' in a flat diamond shape and '13/16' 'HIGH SPEED'.
- History Of Use
- Drill bit used in drills or drill press for boring metal. One side of shank is flat so that the set screw of the drill press will hold firmly, preventing slipping and injury. Used by blacksmiths, carriage and wagon makers, machine shops, etc.
- Material
- METAL-STEEL;
- Length
- 20.5
- Circumference
- 10
- Units Of Measurement
- Centimeters
- Accession No.
- 1996.0008.0001
- Type of Record
- Museum Artifact
Less detail