Flat Wrench

Open-ended spanners for any nut size

Presets
Settings
mm
mm

0 = automatic, based on the nut size.

Advanced
mm

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About this generator

The flat-pack furniture wrench you lost, in exactly the size you need.

How to use

  1. Pick one or two nut sizes.
  2. Print flat as exported.
  3. Use it for light tightening only.

Printing tips

  • PETG or nylon with 100% infill gives the strongest wrench.
  • Plastic wrenches round off under high torque: don't force it.

Helpful guides

Frequently asked questions

How strong is a printed wrench?

Strong enough for light jobs. PETG or nylon with 100% infill works best. Under high torque it rounds off, so don't force it.

What does Length 0 mean?

Automatic: the length follows the largest size. Set a value to make it longer or shorter.

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