You can purchase and download this model here:
https://www.cgtrader.com/3d-models/character/anatomy/rigged-hand-with-pbr-materials-and-multiple-skins
https://www.turbosquid.com/3d-models/3d-rigged-hand-pbr-materials-model-1496579 https://blendermarket.com/products/rigged-hand-with-pbr-materials-and-multiple-skins https://www.pond5.com/3d-models/item/122959349-rigged-hand-pbr-materials-and-multiple-skins