rock bit


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rock bit

[′räk ‚bit]
(engineering)
Any one of many different types of roller bits used on rotary-type drills for drilling large-size holes in soft to medium-hard rocks.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Using special rock bits, the small utility drill units available in the mid-1990s often could penetrate rock, but it was a slower process and a lower success rate of being on target.
Smith Bits, recognized as a leading manufacturer of technologically advanced drill bits for the oil, gas and mining industries, is launching the first fully dedicated HDD rock bit designs at UCT 2001.
Prokopchuk resigned from the board in 1989 and is now president of Superior Rock Bit Canada Inc.
The AT design employs an inner rod to drive a rock bit, and the outer pipe steers the downhole tool for drilling pilot holes and provides rotary torque for the hole opener during backreaming,
The Aggressive Talon Rock Bit is a multi-use bit manufactured for HDD applications in a variety of soil conditions, including sandstone, shale and chunk rock.
The innovative offset steering rock bit design provides precise steering, allowing the operator to navigate a wide variety of ground conditions.
7 in Tonkawa, where the company will sell more than 1,500 rock bits for oil and gas, water well mining and directional drilling operations.
Initially, the product offering include several box x box/high-flow/ side-load and slant-face transmitter housings, along with a variety of dirt and rock bits. Plans are underway to expand the product offering over the next 12 months, beginning with a number of new side-load housings.
He worked for mining consultants for several years, and in 1971 moved to Copper Cliff, outside Sudbury, where he worked for Ontario Equipment and sold rock bits before transferring to Smith International in 1974 for the next 10 years.
Clovis question Stone tools and flaky rock bits in Texas date to between 13,200 and 15,500 years ago, adding to evidence that the Clovis people were not the first in the Americas (SN: 4/23/11, p.
Washington, September 28 (ANI): If a new study is anything to go by, a supervolcano that erupted in central Europe 13,000 years ago, proved to be tough on the teeth for humans and animals during that period, as a large portion of the region's vegetation was covered in a blanket of ash and rock bits.