1. A device for selection based core, comprising an outer casing with centralizers and drill bit, the core tube and the core catcher, the washing system, characterized in that the core tube is provided with a metallic load-plumb and connected to the adjustment head by upper and lower angular contact bearing assemblies rigidly fixed on the central axis, the core tube in its lower part provided with kernootmetchikami-cutters, and the upper part - a control device dealt with nnym thereon graduations, where the central "zero" division is located in the same vertical plane with a main cutter-kernootmetchikom and metallic load-plumb. ! 2. The apparatus for selecting based core according to claim 1, characterized in that the control device is designed as a plate of high-strength plastic rectangular shape.
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