1/4" hexagon socket DIN 3126 and ISO 1173, type C 6.3. For Phillips®, Pozidriv®, Torx®, and slotted screws. Rubber holder for 22 pieces included: with 20 bits, one magnetic universal bit holder, a socket adapter. For universal use, high-quality steel alloy, black oxidized surface, in transparent case. 1/4" square adapter of the cult type for socket screwdriver of standard model (type E 6.3). Universal bit holder with strong magnet (type E 6.3). The belt clip has a safety lock that does not come loose. Hang packaged. Robust and powerful bits