• 1/4" deep length sockets hexagonal • Metric sizes, thin-walled • Sockets are applicable to nuts and bolts used in the aerospace industry • Not suitable for machine operation • High-performance alloy steel • Knurled area for better grip • Applicable to nuts and bolts used in the aerospace industry • Dynamic-Drive™ Profile to protect the nuts, screws and tools from unnecessary wear and damage • Standards: ISO 2725-1/1174-1, DIN 3120