1. Impact-resistant socket wrench made from high-carbon steel. Easy to use: with a torque wrench you can reach difficult and tight spaces under the hood without effort or strain. The socket adapter extension set is about 19 mm long to reach narrow gaps. 2. Multifunction extension set with compact reach for your tools: with the socket extension you can switch between 3 adapters to fit your socket wrench or impact driver (not included). The extension tool includes a 3/8-to-1/4 drive adapter, a 3/8-to-3/8 drive adapter, and a 3/8-to-1/2 drive adapter. 3. Easy repair with the offset extension tool: rely on the 3-piece socket extension for repairs on trucks, motor homes, cars and more. The extension set includes 1 blue socket extension. 4. High-quality, offset, impact-resistant socket tool: you need not worry about bending at the joints. The offset extension is made from high-strength aluminum to withstand long-term use during vehicle maintenance.