Main applications：

1，Strong rock (> 100 MPa) .

2，Very suitable in compact rock.

Features：

1，Kelly box 130mm/150mm/200mm/250mm customized.

2，Cutting ring with staggered arrangement of roller bits.

3，Easy replacement of roller bits.

4，Around wearing strips.

Production Process：

Core Barrel Details：

Parameters：

There are few type of core barrel: core barrel with roller bit, core barrel with bullet bit, Cross cut core barrel

Wearing parts:

Packing and delivery：