- Hexagon drive ISO 1173 C8 (5/16″), ISO 2351-3 C8
- Made in Germany
- Drive: Hexagon, solid 8 (5/16 inches)
- Output: Inside hexagon profile
- Wrench size: 7 mm
- Dimensions / length: 30 mm
- Net weight: 0.01 kg
* = Not according to ISO 2351-3
- Special purpose steel for excessive use
- High-precision, close-tolerance fabrication of tips and edges
- For electric and pneumatic screwdrivers as well as for manual operation
- Tough and hard for threaded screws (hard screw-joint)
- Permanent hardness of 59-61 HR C for high demands in trade and industry
- High torque values, well above DIN standard, over a long service life