Ball Point Hex Key L-Wrench Sets For Hexagon Socket Screws 212H-5CN PB SWISS TOOLS

It has a nickel chrome plating which enables rust resistance and long life.The corners are slightly taken off from the edge so the hex key can be inserted into the screw hole easily.It is extremely hard with hardness of HRC59. It is also made tough so it has excellent wear resistance and durability, and can apply great amount of torque.Set Contents (mm):1.5, 2, 2.5, 3, 4, 5Set Contents (piece):6Chrome Vanadium SteelIt cannot be tightened completely with the ball part.