12 piece metric combination spanner set featuring a brand new design that provides an anti-slip grip on the open end as well as a hip grip function where the spanner drives on the flank of the fastening rather than the corner. These two design features combine to provide a much better grip with less risk of damage to the fastening. The design also provides grip on fastenings with worn or rounded corners. Supplied in a handy fold-out storage case with a magnetic fixing.