Material :
Chrome vanadium steel, through hardened (toughened), surface chrome-plated.

Version :
The spring-loaded retainer ball made of high quality steel keeps the screws very secure in all positions. This retention function makes the screwdriver the ideal tool, particularly when screws have to be inserted and tightened horizontally, at an upward or downward angle or into deep blind holes. The plastic clip enables easy removal of each individual wrench, without the need to move another one.