Handle for keyless drill chuck 0,3-3mm hex 1/4" shaft
To secure chuck in handle 2x M3x10mm socket head screws are needed.
Holes for M3 screw should be tappered by M3 tap before screws are inserted.

Link for chuck:
https://pl.aliexpress.com/item/1005006241583751.html?spm=a2g0o.productlist.main.21.66a02d8e0cJf4r&algo_pvid=a5e4b720-c50b-44f6-a3d3-ee307ffa4937&algo_exp_id=a5e4b720-c50b-44f6-a3d3-ee307ffa4937-10&pdp_npi=4%40dis%21PLN%215.82%216.15%21%21%211.44%21%21%40211b5e2c17041874694833042e0b16%2112000036432476060%21sea%21PL%211864245025%21&curPageLogUid=84i3q9MLH8BN

Material: PLA, PET-G etc.
Layer high: 0,2 or lower
No supports needed.