Ramset powder loads provide quality performance and the power to penetrate hollow block and concrete. Use Ramset 0.22 Caliber Yellow Single-Shot Powder Loads (100-Pack) with the Ramset 721, M70, TriggerShot, MasterShot and Hammers hot tools. Ramset assures consistent, optimum quality in every load. Ramset Drive Pins are designed for fastening applications in concrete and steel. They are specifically fabricated for toughness and durability and are able to penetrate dense concrete and structural quality steel. Ramset assures consistent, optimum quality in every fastener. Recommended applications include 2 x 4 framing, attaching electrical boxes and installing drywall track and plywood sub-flooring.