Few people know the secret of making this useful tool

Professional drawing tool making tutorial for circular objects: a comprehensive guide to making a precise and practical tool for showing and accurately drawing circular objects. This tutorial includes the stepbystep steps of making a drawing tool, from selection. From raw materials to assembly. Finally, with this tool, you can easily and accurately draw a line on circular objects and make accurate measurements. This training is more useful for plumbers and welders. You can see other videos on my channel If you like it, please subscribe and support my channel.