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 BRIE113912B Short Arm Hexagon Key 1.5mm has the following dimensions:
Arm Length: 47 mm
L Length: 16 mm
Weight: 1 g