A tough set of fixed handcuffs to detain.
Built with minimal hardware, easily available at any hardware store.Although not intended to replace metal cuffs, these are a tough cheap alternative that can be produced at home.
If you're a frequent user of cuffs, with these file, the parts can be reprinted and multiple cuffs made.
The cuffs ratchet closed and are released by a standard handcuff key and no other way and can be double locked.
The cuffs can be tethered by a padlock hole in the centre.
Required materials:6x M4x16mm socket screws (e.g. https://amzn.to/3esOCdT)6x M4 nuts2x handcuff keys (e.g. https://amzn.to/3cpjc5B)1x 15x2.25mm spring
These cuffs can be used for training, a light weight backup and adult purposes.