Precision bit adapter, low profile, 1/4in shank to 4mm shank

I wanted to use 4mm precision bits in my 1/4in shank tools. I have a metal adapter to do that but it sticks out past the tool allot. 

That is when I designed this low profile adapter. it only protrudes from the 1/4in tool by 2mm.

This uses a 4mm x 2mm round magnet. https://www.amazon.com/gp/product/B08NZS7WBK/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I have tried printing it on its side, standing up on end, and at an angle. It works best when printing on its side and should be strongest this way too.

Model is already oriented correctly. Print without supports.

Update 030323: I added a version that is 1.5mm shorter. I wanted it to seat completely in my Craftsman tools.