Drilling Bucket Manufacturer

• Interlocking kelly bar
• Friction kelly bar.
• The tubular Kelly bar sections are made of high-tensile steel.

Single cut or double cut

Kellybox*200mm(optional).

Wear protection:hard facing (standard) or wear strips(optional).

Core Barrels are used for cutting an annular ring in rock or concrete(alsoreinforced concrete).

The centre core is uaually broken with chisel,rock auger or cross-cutter.

Augers are used for dry hole drilling or rock crushing.

Double cut is recommended for uncased bores or for bigger diameters.

Tremie Pipe Concrete Model:∅219mm  ∅250mm ∅258mm ∅260 mm  ∅270mm  ∅288mm  ∅300mm  ∅325mm .

The use of double-walled casings ensures a flush drill string.

Single-walled casings can be used for applications.

• High tensile strength
• flexible rotation performance
• excellent sealing property

The tungsten carbide used for drill bits is composed of tungsten carbide and cobalt. It can withstand impact loads, and features a long service life as well as excellent durability。