core bit

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Noun1.core bit - a hollow drilling bit that is the cutting part of a core drill; allows core samples to be taken
core drill - a drill that removes a cylindrical core from the drill hole
drill bit, drilling bit - a bit used in drilling for oil
References in periodicals archive ?
Tenders are invited for Supply of 13 mm nq size pcd core bit with tsp chips(matrix body)
The next step in the process is scoring completely through the coating down to the substrate surface with a diamond tip core bit and drill.
Each core bit diamond tool in this category is created as per the exact requirements of the customer.
Unfortunately core was not able to be extracted from the twin of LM175 when the core bit and last rod broke free and was left at the bottom of the hole.
idle] starts to affect the service quality when the values of the are comparable to tidle and dominate the wavelength holding time for high core bit rates such as [b.
I have the power, Eden's apple, core bit delicious.
The core bit is still really important because that bit decides all the new parts.
Otherwise, hire a heavy-duty drill and diamond core bit from your local hire shop.
The design allows optimal water flushing and ensures the core bit is cooled.
Just before its arrival, an electric motor begins to rotate the drill string to drive the core bit into the sediment.
Higher penetration rates are related to the thin kerf of the core bit and markedly decreased area of rock to be destroyed.
With the 3-inch core bit, drill 1-inch-deep holes in each 14 1/2-inch leg, on two adjacent sides, centered 7 inches from one end.