Simply attach one of the four blast cones provided, push the HotSpotTM over the Speed Blaster"s ceramic nozzle and go. The individual shapes of the four blast cones conform to any surface. Hold the HS2020 blast cone tightly to the work piece and pull the trigger. The blast media, rust, scale and debris are instantly directed into the breathable collection bag.Simply attach one of the four blast cones provided, push the HotSpotTM over the Speed Blaster"s ceramic nozzle and go. The individual shapes of the four blast cones conform to any surface. Hold the HS2020 blast cone tightly to the work piece and pull the trigger. The blast media, rust, scale and debris are instantly directed into the breathable collection bag.