3D-printable tool · Open hardware
PenScrewDriver
A pen-sized micro-bit driver with an integrated spudger — designed to be printed at home.
Engineered by PenEngineering. Print it yourself, download the source files, or order one assembled from us. One tool for driving, prying and field repairs.
Design
One print, three tools.
A driver, a bit holder and a spudger — fused into a single pen-format body.
Ergonomic body
Pen-format grip tuned for fine, high-torque control. Prints on any FDM machine — no fasteners, no glue, fully self-contained.
Hex bit socket
A friction-fit socket holds any standard 4 mm hex micro bit. Press a bit in and it stays seated through every turn.
Integrated removal tip
The tail end is a built-in spudger / pry tool for clips, ribbon cables and popping bits back out. One print, two tools.
Get one
Build it. Buy it. Download it.
Engineered by us — yours three ways.
Build it yourself
Grab the files, slice with supports on and print. No fasteners, no glue — press a bit in and it's ready to work.
Print specsDownload the files
STL, print-ready 3MF and the dimensioned technical drawing — free for personal use.
Download STLBuy from us
No printer? We'll print, finish and ship one assembled — engineered by PenEngineering. Ordering opens soon.
Files
Files and print specs.
Everything you need to put one on the build plate.
Tested on FDM. Slice at 0.2 mm with supports enabled.
Gallery
Render to real.
From CAD to a printed tool fixing real hardware.





Print it. Or let us print it.
The PenScrewDriver is open hardware, engineered by PenEngineering. Download the files and build your own, or buy one assembled — ordering opens soon.