The most common and economical drilling method is auger. A drilling rod that rotates a helical screw blade called flighting, its acts as a screw and when rotated (by hand or machine) causes soil in the ground to move to the top of the hole where it is able to be sampled.

Eziprobe offer four standard sized diameter augers from 3" to a 5 1/2"x 1.5m or 1.8m long (unique lengths and diameters are available on request to suit specialized projects).

Torque is transferred by a hex joiner and the tension is by removable D clips. Eziprobe offer several different configurations of drill bits for their augers.

Another form of rotary drilling option is the system we know as "down the hole hammer." This method is uses air to both operate the hammer and remove the cuttings. The tooling percussion hammer is powered by high pressure drill string rotation and feed is from the drill hydraulic system. The representative sample is then blown to the top of the hole where it is able to be collected for testing.

A range of down the hole hammers and drill rods can be fitted to suit the contractors hole requirements. Diamond drilling attachments can also be fitted when an undisturbed hard rock sample is necessary.

Unlike the auger sampling which uses rotation to receive the material, push probe sampling utilizes a hammer to effectively drive the sample tube into the soil. This method is preferred in Environmental and Geotechnical sampling because the soft friable material is retrieved undisturbed in a clear plastic sample tube. This method is best in situations where the ground soil needs to be analysed with as little contamination of the soil as possible.

Standard Penetration Test, SPT used in geotechnical testing, delivering precise blows to the sampling tube as per the Australian standard. Eziprobe offer a SPT system designed to be used with a winch to give the most accurate results possible.

(Cone Penetration Test)
The test method consists of pushing an instrumented cone, with the tip facing down, into the ground at a controlled rate.The results give the engineer information on the ground conditions