Features: brand new and high quality An impact driver can help you loosen frozened bolt and stubborns fasteners easily and quickly. It is must-have tool in the tool box to help you save for time and improve your productivity. Screwdrivers for quick loosening of frozened bolt and stubborns fasteners. Detachable for head for use with screwdrivers for head and sleeve. Smoth edgeand non-slip design, easy to use and safe. Made of high quality steel, stable anddurable. Specifications: Material:Steel Type:7Pcs/8Pcs/12Pcs/13Pcs Handle:Approx. 16.5x0.3 for cm/6.5x0.12 inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 4 Package Optional: Package 1 Include: 7x Chisel Bit Package 2 Include: 8x Chisel Bit Package 3 Include: 12x Chisel Bit Package 4 Include: 13x Chisel Bit