The rod is made of Cr-V material, heat treated, high hardness HRC 52 and torque 180~190kgf*cm, with magnet. Black nickel finished rod, better resistance to corrosion. Precise tip for high-end user. 2 color elastic handle, made to ergonomics, feels good in hand. Allen key type go-throught shaft and end, not only can be hit by hammer but also can work with a wrench to increase the torque.