Screwdriver BIT adapter - 4 mm - 1/4 (6.3 mm) BIT

This is a BIT Adapter for electric screwdriver. Adapter from 4 mm BIT to 1/4 inch (6.3mm) - BIT - normal size BIT. Including the possibility of inserting a 5x2 mm magnet. Printing from PLA is not a problem, but for greater strength I recommend PETG. Works great with AliExpress Bit set. Print only 15 min. 

There is a hole for a 5x2 mm magnet to hold a large (1/4 inch) bit.

I recommend printing with optimal quality, 0.16mm layer and 4 perimeters.