The power transmission from the nuts to the screw head is not via the corners, but via the flanks. This ensures higher power transmission, plus the sensitive edges of the nut remain intact. With ball-shaped, conical outer square end · Swivel range up to 12.5° · Can also be used as rigid extension. https://elecena.pl/product/27172134/toolcraft-820779-1-2-quot-drive-socket-27mm 2024-11-07 https://elecena.pl/product/27172134/toolcraft-820779-1-2-quot-drive-socket-27mm 2025-07-30