Product description Reinforced cross-handle balloon keys AUTODELO are used for mounting and dismounting car wheels.   The increased diameter of the rod and special steel inserts installed at the welding point of the rods enhance the strength characteristics of the keys and their service life. --- Made of chrome-vanadium steel by hot stamping (forged on hammers). --- Have a standard hexagonal working profile. --- The rods are welded by spot welding method and reinforced with steel riveted inserts. --- Protected from corrosion by synthetic polymer coating.