A Hex key, Allen wrench or Allen key, is a tool used to drive bolts and screws with hexagonal sockets in their heads.
The Allen name is a registered trademark, originated by the Allen Manufacturing Company of Hartford, Connecticut circa 1910
Originally named Allen Manufacturing Company, the business produced hexagonal set screws and wrenches to fasten them.
The terms “Allen wrench” and “Allen key” are derived from the Allen brand name and refer to the generic product category “hex keys”
What are insulated tools?
Insulated tools are designed to protect you against injury in the event that you make contact with an energized source.
Every insulated tool must be marked with the year it was insulated and an official 1,000-volt rating symbol, which ensures you will be protected for live use up to 1,000 VAC or 1,500 VDC.
They shall comply with the international standard IEC EN 60900
They are identified by the mark : 1000V (double triangle) IEC EN 60900 with the name of the manufacturer, tool reference, and the year of manufacture.
As a UK manufacturer, Boddingtons additionally include the batch number to give traceability.