Spanners

Ring Spanners are hand held tools used for fastening and loosening nuts or bolt heads with a hexagonal shape. Ring spanners are often double-ended and usually with offset handles to improve access to the nut or bolt. The recess is generally a six-point or twelve-point opening.
Used by
Mechanics,
Electricians and
Network Engineers.

How they work
They rely upon the physical strengths of the operator to deliver accurate force when attaching the recess head to the nut or bolt and rotating clockwise or anti clockwise.

What materials are they made from
Typically made from steel or beryllium copper