I have a friend who does all kinds of things in his garage. If you pay him a visit, you will feel like being in some modern workshop. He is a great mechanic too and he can fix all kinds of machines. Lately, he's been very interested in testing the latest diamond tools. I told him that he should visit the website of Applied Diamond, the company that is second to none in providing customers with the best diamond core bits on the market. This company has been operational for almost 20 years and the guys who work there have almost 100 years of combines experience.