core drill

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core drill

[′kȯr ‚dril]
(mechanical engineering)
A mechanism designed to rotate and to cause an annular-shaped rock-cutting bit to penetrate rock formations, produce cylindrical cores of the formations penetrated, and lift such cores to the surface, where they may be collected and examined.

core drill

A drill used to remove a sample of rock in situ, for determining bedrock profiles or for obtaining a core for testing; the sample is retained in the core barrel.
References in periodicals archive ?
This is a professional grade core bit, available in exact specifications and designed to be used in a variety of drilling jobs.
National Diamond is a leading US manufacturer & distributor of diamond saw blades, diamond core bits, loop blades, diamond cup wheels, diamond polishing pads, tuck point blades, turbo blades and other specialty diamond cutting and finishing tools from over 20 years.
Its optimum drilling range is 1" to 2" using solid bits, and 6" using core bits.
Tenders are invited for Rotary Hammer, Model:Gbh 2-22 Re, Drilling Dia In Steel-13Mm And In Wood-30Mm, Core Bits Masonry-68Mm, Power Output-620 W, No Load Speed-0 To 1000 Rpm, Single Impact Energy-2.
Its optimum drilling range using solid bits is 5/8" to 1-3/4" with a maximum capacity in concrete of 1-3/4" using solid bits, and 6" using core bits.
23 /PRNewswire/ -- Metabo Corporation, a leading international manufacturer of professional grade portable electric power tools and abrasives for industrial, construction and welding applications, now offers a family of 1-piece core bits for rotary hammers that increases the efficiency of drilling into hard, solid materials such as concrete, block and brick.
In addition, over 2500 accessories are available including reciprocating saw blades, hole saws, wood boring bits, diamond core bits and others to support all tool products.