Type CB-RB uncased Core barrel with roller bits

Effective length | 1,200 mm |
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Diameter | 700 - 2,000 mm |
Bored pile diameter | 700 - 2,000 mm |
Casing | uncased |
Range of application | Compact rock from 100 Mpa up to about unreinforced concrete 250 Mpa |
Equipment | Kelly box 200 mm, easily exchangeable tapered roller bits with carbide pins, teeth and conveyance flights for transporting the drill cuttings. Easily exchangeable hard metal wear plates and hardfacing as wear protection |