The TOLSEN Industrial 19mm socket is a professional-grade tool designed for use with 1/2" square drive ratchets, breaker bars, and torque wrenches. It is crafted from heat-treated 50BV30 chrome vanadium steel and finished with polished chrome, ensuring it meets the rigorous DIN3124 and ISO2725-1 standards for durability and precision. To make your work easier, the socket features an improved head profile that allows you to grip and remove deformed fasteners more effectively. A ball retaining groove in the drive ensures a secure fit on your handle, preventing the tool from slipping during heavy-duty mechanical tasks.