P/N 28104 is an obsolete Wiha Blade holding handle. Wiha has an Ergonomic version which is part number 28488.
Part 28488 is slightly shorter at 4.53" than the obsolete part was at 4.8", however still works with the 6mm drive size.
The TechForum Cross Reference category is for parts that Digi-Key does not sell or parts that have gone obsolete. Our Engineers and Techs have reviewed the specifications for these parts and made a recommendation for a replacement. Please review the suggested part to ensure it will work for your application.