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DRILL BIT
- Material
- METAL-STEEL;
- Description
- Large drill has twist extending the full length from one end to the other. The bottom 13cm is slightly tapered to fit in chuck of drill.
- Category
- TOOLS AND EQUIPMENT FOR MATERIALS
- Sub-Category
- METALWORKING TOOLS AND EQUIPMENT
- Description
- Large drill has twist extending the full length from one end to the other. The bottom 13cm is slightly tapered to fit in chuck of drill.
- History Of Use
- Drill bit used in percussive drill on the C.N.R.
- Material
- METAL-STEEL;
- Length
- 30
- Diameter
- Top: 3.5 Base: 3
- Circumference
- 10.5
- Units Of Measurement
- Centimeters
- Accession No.
- 1996.0003.0001
- Type of Record
- Museum Artifact
Less detail