Collection:
Juneau—Douglas City Museum
Object ID:
2003.58.014
Accession#:
2003.58
Credit Line:
Donated by the U.S. Bureau of Land Management.
Object Name:
Bit, Drill
Title:
Large Steel "Tricone" Churn Drill Bit
Date:
1950
Description:
Large, cylindrical steel "Tricone" rotary or churn drill bit. Three rotating cogged wheels at tip. "3/4/ W" & "4" stamped into each wheel. "W45 3/4 5 (circle w/ "T") 6419" stamped inside bit.
Notes:
See 2003.58.001
See document file
Search Terms:
Government
Federal
Geological
T&E
Mining
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Large Steel Large Steel "Tricone" Churn Dr
Large Steel Large Steel "Tricone" Churn Dr
Large Steel Large Steel "Tricone" Churn Dr