Hex wrenches

Hexagonal

— keys with a working part in the form of a pin representing a hexagon in a section. Designed for bolts and self-tapping screws with slots of the appropriate shape in the head. In addition to the classic hex wrenches, there are also so-called. inbus — in them the working part has a slightly rounded shape, due to which such a key can be located in the slot at a certain angle to the axis of rotation of the fastener. In addition, we note that some manufacturers and sellers include Torx wrenches in this category (see the relevant paragraph), but this is not entirely top — these are still two different forms of working profile.