rock bit


Also found in: Dictionary, Thesaurus.

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.
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.
Prokopchuk resigned from the board in 1989 and is now president of Superior Rock Bit Canada Inc.
The innovative offset steering rock bit design provides precise steering, allowing the operator to navigate a wide variety of ground conditions.
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.
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.
Roughnecks, rock bits and rigs; the evolution of oil well drilling technology in Alberta, 1883-1970.
Smith Tool produces two types of drill bits: milled tooth bits and tungsten carbide insert (TCI) rock bits for the petroleum industry, as well as for blast-hole, pilot-hole and hammer bits for the mining market.
The speed of the drill is significantly influenced by the rate of penetration of the rock bits selected.