Parametric Bit Driver (hex 2mm to 10mm) 3D printable model by Crono

Parametric Bit Driver (hex 2mm to 10mm)

Source: Thingiverse by Crono

The Parametric Bit Driver (hex 2mm to 10mm) is a free printable 3D model from Thingiverse by Crono. Since i have not found any good driver for 4mm bits i made one myself. You can download the STL file from the original listing below and print it at home.

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256 saves Source: Thingiverse Updated 2026-09-05

Tags: Parametric, Bit, Driver, (hex, 2mm, to, 10mm)

About this model

Since i have not found any good driver for 4mm bits i made one myself. Done in OpenSCAD, source provided. Inside is an hole for a magnet (4mm diameter, 2mmheight). Magnet should just hold by pressfiting, otherwise use glue. Tolerances work well for Prusa MK2/MK3, but maybe you have to adjust. Edit: you seem to like this one, so i made it parametric (including customizer support). You can now generate hex drivers for 2mm up to 10mm - including different magnet-sizes.

Frequently asked questions

Is this 3D model free to download?
Yes. Parametric Bit Driver (hex 2mm to 10mm) is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?
The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by Crono.
Who made this model?
Designed by Crono, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?
Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.

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