Grouting Hole Drill Bits
Rating |
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Title |
Grouting Hole Drill Bits |
Title Caption |
Types of diamond drill bits used for drilling grout holes. From left to right: 1-7/8" core bit, 1-7/8" concave solid bit, and 1-3/8" concave solid bit. Black diamonds, the cutting agent, are partially visible in the metal of the bits. |
Description |
Types of diamond drill bits used for drilling grout holes. From left to right: 1-7/8" core bit, 1-7/8" concave solid bit, and 1-3/8" concave solid bit. Black diamonds, the cutting agent, are partially visible in the metal of the bits. |
Date Original |
1939 |
Author |
United States. Department of the Interior. Bureau of Reclamation.; Messrs. Johnson and Erickson selected photographs from photographers Pomeroy, Robinson, and Russell. |
Library of Congress Subject Headings |
Rock-drills--Washington (State)--Grand Coulee Dam; Core drilling--Washington (State)--Grand Coulee Dam; Drag bits [Drilling and Boring]--Washington (State)--Grand Coulee Dam |
TGM Subject |
Grouting; Drilling & boring machinery |
Type |
Image |
Genre |
Photographs |
Geographic Area |
United States--Washington (State)--Grant County--Grand Coulee Dam site; United States--Washington (State)--Grant County--Grand Coulee Dam |
Identifier |
cg040b07v7p184.jpg |
Publisher |
Manuscripts, Archives, and Special Collections, Washington State University Libraries: https://libraries.wsu.edu/masc/ |
Source |
Is found in A History of the Columbia Basin Project (vol. 7, pg. 184), Cage 40, Frank A. Banks Papers https://libraries.wsu.edu/masc/finders/cg40.htm at Washington State University Libraries' Manuscripts, Archives, and Special Collections (MASC) https://libraries.wsu.edu/masc |
Rights |
http://rightsstatements.org/vocab/NKC/1.0/ |
Rights Notes |
No known copyright. Item is in public domain as it was created by the United States government. |
Digitization |
Original photographic prints were scanned at 24 bit 3000 pixels by the long side for master TIFF files on an Epson Expression 10,000 XL scanner. While 24 bit 150 PPI JPEG also created and added to the CONTENTdm database at the WSU Libraries. |
Notes |
Part of Western Waters Digital Library, http://westernwaters.org/ |
Language |
English |
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