KS Tools 911.0106 1/4 inch + 3/8 inch + 1/2 inch Extension and Reduction Adapter Set | matt satin finish | 6 pieces

"The socket adapter set includes a wide range of extension and reducer adapters. Ideal for professional use as automotive tools in the workshop or for the DIY enthusiast as a screwing tool for maintenance. Firm grip of all components in a sturdy plastic case. DIN 3123 / ISO 3316. Square drive according to DIN 3120 / ISO 1174 with ball locking mechanism. Female square according to DIN 3120 / ISO 1174 with ball catch groove."