Portable Twelve (12) Piece Air PoweRed Light Weight, Light Duty Tool for forcible entry and rescue work. Use Together with SCBA or Spare Air Cylinder. The PAKHAMMER KIT includes Three (3) Specially Designed Tool Bits for Cutting, Breaking and Penetrating. Cut Sheet Metal, and Locks. Create Entry Through Masonry Walls. Very Low Air Consumption and High Impact Output, at 1100 Blows Per Minute. Weight only 11 pounds (5 kg), the PAKHAMMER KIT is an ideal tool for rescue work. Additional Bits May Be Purchased for Haz-Mat, Firefighting and Vehicle Rescue.