Crank Tobrazny ET1037 used to work with the end heads having a square drive 3/4 "characteristic feature of knob Tobraznogo is its length and the material of construction of the driver length -.... 480 mm This is a small length for operation with end heads Such a knob is used for more with cars and trucks Material -.. This steel chrome-vanadium steel is characterized by high strength and wear resistance tool Ease of capstan is that the square is on the movable. the hinge. This allows, for example, working with the nuts and bolts at a certain angle to them, if you can not install the handle knob is strictly perpendicular to the bolt or nut. The handle notches applied to prevent sliding of hands while working.