Reverse Circulation Drill Pipe Weights

Reverse Circulation Drill Pipe Weights

Harlsan Reverse Circulation Drill Pipe Size & Weights Need to work out the weight of your drill rod or drill string? Use our tools. When it comes to dealing with Harlsan, and our products, we always strive to make it as easy as possible for you. In recent months...
How to use air core bits

How to use air core bits

Harlsan > News The efficiency of an air core drilling program in certain ground strata can be improved with the right equipment and people. In some instances the drilling can be carried out with a faster drilling rate by using an air core bit. The alternate is...
Are urethane seals better compared to o-rings?

Are urethane seals better compared to o-rings?

Harlsan > urethane seals Urethane seals in comparison to o-rings? Hard wearing urethane seals give significant production benefits & cost savings over the O-Ring system in RC drill strings and are fast becoming the standard for RC Drilling. Urethane seals in...