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 BRIE113916B Short Arm Hexagon Key 4mm has the following dimensions: Arm Length: 74mm L Length: 29mm Weight: 10g