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drill steel |
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drill steel [′dril ‚stēl] (metallurgy) Steel with at least 0.85% carbon content made by the electric furnace process. Formerly known as crucible steel, when made by the crucible process. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Crews from California Restoration Builders, which specializes in adobe work, will drill steel rods, a half-inch in diameter and 4 feet long, into the stucco-covered adobe walls to seismically strengthen the mission complex. In the process of extracting the drill rods, a drilling contractor error caused 700 feet of drill steel to be lost, dropping to the bottom of the hole. To complete the drill hole, a core drilling rig has re-entered the drill hole and is currently being wedged off to avoid reverse circulation drill steel that was lost at the bottom of the reverse circulation drill hole. |
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