Please see picture for full details.
NOTE: The 6 peace in front is not part of the Koken set but as it was in same box, it included in this sale.
Information from internet
The Koken 14241M | 1/2" Sq. Drive Socket Set is available to order online.
Ko-ken sockets are manufactured according to DIN/ISO standards.
Manufacturing tolerance of Male and Female Square are precisely controlled to achieve a more secure fit between Socket and Handle
Impact Socket