The hexagon is typically a smaller diameter than would be used with an external cap, and is more likely to round off its contact surfaces.The tool can be reconditioned using an electric grinder by removing the worn-out part, and then it works like new.The tool is L-shaped and is often designed to be used with both sides.Either end of the tool can be used to take advantage of reach or torque.The tool can be manufactured very cheaply, so one is often included with products requiring end-user assembly.Very small bolt heads can be accommodated.Torque is constrained by the length and thickness of the key.The screw can be inserted into its hole using the key.
The tool can be used with a headless screw.There are six contact surfaces between bolt and driver.The contact surfaces of the screw or bolt are protected from external damage.In the fastener industry, the terms “socket head” or “hex socket head” are generally used for the driven part of the driver–driven pair. The term hex-head is sometimes used to refer to this type of drive, but this use is not consistent with its more conventional use referring to external-wrenching hexagons. The synonym zeta key or wrench refers to the sixth letter of the Greek alphabet. Explained by the geographical and commercial history of the drive type's development, the term "hex key“ is best known as Allen in the USA (The “Allen” name is a registered trademark, originated by the Allen Manufacturing Company of Hartford, Connecticut circa 1910, and currently owned by Apex Tool Group, LLC), known as Allen in Spain (pronounced with Spanish double L), Inbus in Germany (The term “INBUS” is a registered trademark, originated by the German company Bauer & Schaurte in 1934 and currently owned by INBUS IP GmbH, Breckerfeld, Germany) and Unbrako key or wrench in Scandinavia.
0 kommentar(er)
