About this 3D model
Small, quick to print and very convenient to use screwdriver bit holder .. https://www.amazon.it/gp/product/B0097DYZHK/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&th=1 https://www.amazon.it/gp/product/B000NDGQD4/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1 I recommend printing it with the hole facing up. Print setting Nozzle Size: 0.4mm Layer Height: 0.3mm Vertical Shells: 2 Top/Bottom Layers: 4 Infill: 15% Supports: Nope print time 50minutes