There are many types of drilling but one that is favoured in mining, quarrying and construction projects is down-the-hole, but what is it, why is it used, what is involved and who makes the equipment.
Sandvik’s Leopard DI650i is a dedicated DTH drilling rig for use in quarries and open pit mines
The type of technique used to drill a hole is mainly dependent on what you want to achieve with the hole you are drilling. If it is to create a small diameter hole and you do not need to know what is coming...
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