The Britool metric short hex keys are made in chrome vanadium steel for torque strength exceeding current standards with a zinc-plated finish. The angles on the end faces are microchamfered for better grip in the screw head.
ISO 2936 - DIN 911.
The Britool BRIE113919B Short Arm Hexagon Key 7mm has the following dimensions:
Arm Length: 102mm
L Length: 41mm
Weight: 43g