Impact and Ratchet KitThis kit gives you everything you need for success. The kit includes a 231G Impact tool, a 170G 3 8 Ratchet, a socket set, and a blow molded carrying case. Utilize the 231G when you need more power at 550 ft. lbs. and use the 170G when you to fit into a tighter space. Exclusive twin hammer impact mechanism Variable speed trigger Ergonomic grip Powerful 6 vane motor Easy to use forward reverse power regulator on 231G impact Heat treated ratchet head