3/8 Extension tray for 3 extensions "snap-on" style

Modeled for 3pcs extension (75mm, 150mm and 250mm). Modeled for specifically for Biltema magnetic extensions, but they are standard size and tray should fit all 3/8 extensions. Made small small changes 23.04.2026 https://www.biltema.fi/en-fi/tools/hand-tools/socket-tools/socket-extenders/extenders-with-magnet-3-parts-2000022863