The metal part of the highest quality BEARGRIP screwdrivers is made of chrome-molybdenum-vanadium steel. which ensures high surface hardness on the one hand. on the other hand, optimal torsional strength when transmitting high torques. 54-56 HRc. The handle is made of special plastic. which gives it increased mechanical strength and resistance to oils/chemicals. UV radiation and temperature. The handle is designed with an ergonomic triangular profile. which ensures the best grip even with a single-component handle. There is a special rubber ring at the bottom of the handle. which helps to quickly twist a long assembly between the fingers before or after a strong tightening torque. Handle with hanging hole. Torx screwdriver. long series 2610.