Drilling knowledge
References we built because we needed them ourselves. We manufacture and service water well and borehole rigs in Limpopo, and these are the things drillers phone us about — thread identification, what to look for in a rig, and what a machine actually costs to run. Free to use, no sign-up.
Drill String Thread Identification
What thread is on that pipe? Identify API Regular, IF and NC, Full Hole and R/T rock drill threads with a rule and a caliper. Includes a lookup tool, sectioned drawings and sourced dimension tables — with the data gaps stated plainly.
Open the guideBuying a Rig — What to Consider
Mast height, pull-back, compressor sizing, mud versus air, and the questions worth asking before you commit to a machine.
Read the guideRig Finance Calculator
Work out the monthly instalment, total interest and total cost for a rig at a given price, deposit, rate and term.
Open the calculatorRigs at Work
Our machines drilling, and walkarounds of the builds coming out of the workshop.
WatchNews & Guides
Borehole drilling costs in South Africa, DTH against mud rotary, drilling near power lines, and the long-term running-cost squeeze.
Browse articlesSomething you need that is not here?
If there is a chart, a conversion or a bit of hard-won drilling knowledge you keep hunting for, tell us and we will build it. These pages exist because someone asked.
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