The Roller Bit Core Barrel is used to remove rock samples from drilling operations. The single tube Roller Bit Core Barrel is the cheapest and strongest type with a head, coring tube, a reamer housing and cutting bit.
[pdf] Our concrete core drilling equipment is designed to work with diamond core bits to core (remove cylinder of material) from concrete and stone. Diamond Tool Store carries a wide range of core drill stands, motors, and bits that are made to last and make the cut.
[pdf] With interchangeable core bits capable of drilling holes from 1.5" to 9" in diameter, operators can tackle diverse pipe materials including vitrified clay, concrete, ductile iron, cast iron, C-900, HOBAS, and PVC/HDPE systems using a single versatile machine.
[pdf] 
