Make your own sharpening disk

Do you have a problem with blunt tools? Do you hate to have to lug a grinder to demonstrations? If so, this may be an answer to the question you've not yet asked.A sharp tool is safe; a blunt one is dangerous because a sharp tool does what you expect it to whilst a blunt one requires force to make it do the job; which is dangerous because it is not as predictable. Enough blurb, let's get on with