This Bostitch BTMT72391 air hammer is a reliable and powerful tool for any job. It has been thoroughly tested and is ready to use. The 1/2 inch air inlet size allows for easy connection to your air compressor, and the impact driver capability makes it perfect for heavy-duty applications. The model number is BTMT72391, and it is designed for maximum efficiency and durability. Whether you're a professional carpenter or just a DIY enthusiast, this air hammer is the perfect addition to your toolkit.