High Quality:Offset extension keys are made of durable aluminum that won't bend or break at the seams to ensure long service life. Offset Extension WrenchThis wrench is equipped with a zero point shift and allows you to reach fasteners in tight places without sacrificing leverage or maneuverability. Easy to use: With the torque wrenches, you can easily get into tight places. The socket adapter set with extension is approx. 3/4" (19mm) thick. Heavy Duty Size: The socket extension is 15 inches (39 cm) long and can be used with a variety of ratchet wrenches. Ideal for car repairs and DIY jobs. Fit: With the socket extension kit, you can switch between 3 adapters that fit your socket or impact wrench (not included).