We are the Exclusive U.S. Distributor of the world's only self-stemming, non-detonating power cartridge, AutoStem Cartridges are high efficient in blasting rock and/or concrete in borehole sizes up to 46mm. Cartridge types are available for all deep level underground mining and civils blasting needs. Available in power charges from 20g up to 300g, we offer an AutoStem Cartridge solution for all blasting needs. AutoStem Technology does not detonate, enabling users to deliver high energy to rock without the hazard of a shockwave. Classified by the United Nations under Class 1.4s, AutoStem Products can be transported by passenger airplane as well as handled in a commercial vehicle.