Diafragma wrench

I recreate the wrench you can adapt to you needs. But I like to use the boxing wrench. So I designed diafragma wrench , with a simple turn you can adapt the size of the wrench. Its more durable for the bolt and and you get more grip on your bolt. Inspired by fully assembled 3D printable wrench by barspin. I remix the concept of the worm gear to make the adaptable ring wrench. I change the text inside the wrench to diafragma in the 11inch edition and to just dia in the 7 inch edition. Here is a Video (link) of the printing proces and the result. Here is a Video (link) of the concept and working of the diafragma wrench