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DRILL BIT
- Material
- METAL-STEEL;
- Description
- Large drill bit has twist extending the full length from one end to the other. The bottom 13cm of drill bit is smaller in circumference in order to fit in chuck of drill.
- Category
- TOOLS AND EQUIPMENT FOR MATERIALS
- Sub-Category
- METALWORKING TOOLS AND EQUIPMENT
- Description
- Large drill bit has twist extending the full length from one end to the other. The bottom 13cm of drill bit is smaller in circumference in order to fit in chuck of drill.
- History Of Use
- Drill bit used in percussive drill on the C.N.R.
- Material
- METAL-STEEL;
- Length
- 32
- Diameter
- Top: 4 Base: 3
- Circumference
- 11.5
- Units Of Measurement
- Centimeters
- Accession No.
- 1996.0002.0001
- Type of Record
- Museum Artifact
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