Material: Made of high quality high hardness chrome vanadium alloy steel, with high hardness, high torque, good toughness and long service life. It can clamp any shape , such as screws, rotary hooks and square nuts, hex nuts, etc. This unique wrench consists of 54 pins, high-quality springs, and is not easy to deform. In order to adapt to different sizes of bolts and nuts, I prefer to use this universal ratchet wrench to save space and money. It is very suitable for automotive industry, repair appliances, manufacturing, construction and other industries, or when you want to loosen screws, nuts, hooks and other fasteners. It is perfect in your toolbox. Product size: The hexagonal shaft is 50mm long, 6.3mm in diameter and the base measures 10mm; the sleeve is 52mm long and 25mm in diameter. Shipping quantity: 1 set, including 1 handle and 1 sleeve