Accessories

Accessories

  BIT GAUGES Kobald Mining Services’ Steel Ring Gauges (pdf to be inserted) are produced in sizes corresponding to the standard outside set diameters of bits and reaming shells, helping you determine specific measurements of new bits and/or shells. For drillers, it is highly important to check the size before starting drilling in order toRead more about Accessories[…]

Overshots

Overshots

With Kobald Mining Services you are sure to work in safe environment.  Kobald’s overshot (pdf to be insert) allows the driller to recover the inner tube safely. No need to remember to stop and lock the inner tube assembly in place, gravity automatically does it for you! Available in both standard or rolling styles. AsRead more about Overshots[…]

Casing

Casing

The basic function of casing is to protect the borehole and the drilling tools against caving in weak overburden material or dykes and to prevent excessive water losses or inflow. Our standardized casings (BW, NW, HW, HWT, PW and PWT) are hollow tubes from high quality steel either flush-jointed or flush coupled. Flush –jointed casingRead more about Casing[…]