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    Cobra Combi Tuning Guide now available!

    Are you having trouble with your portable Atlas Copco gas drill? Have you noticed that there is very little information available on these units? Based on a lot of customer feedback, we have published a new comprehensive guide to tuning and troubleshooting your Combi portable drill. It covers most of the common problems and the…

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    California Certificate of Eligibility (COE)

    If you work with explosives in California, you most likely need a Certificate of Eligibility. This is a background check administered by CAL DOJ and successful completion of the process results in a certificate that is good for 12 months. A valid COE is required for almost all county explosive permits in California. Unfortunately, this…

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    Precision Blasting Course

    September’s blasting class was a success! Our group went over safety and PPE, ATF compliance, California blasting regulations and explosives storage. Then we went out on the range and covered initiation systems, blew up a chicken and gradually moved up to more difficult problems. The final project for this class was designing, drilling, loading and…