Technical Information: Outside square Drive 12.5 = 1⁄2″ – Inside square
(Robertson) drive 10 = 3⁄8″
With locking ball
Surface: chrome-plated
DIN 3123, ISO 3316
Made in Germany
Drive: Square, hollow 10 mm (3/8 inch)
Output: Square, solid 12.5 mm (1/2 inch)
Dimensions / length: 36 mm
Net weight: 0.07 kg