D&I Tool LLC manufactures and resharpens standard and custom carbide tools. We offer a large selection of general purpose and high performance, high quality carbide end mills including square end, ball nose, corner radius, form tools and three types of available coatings: Aluminum-Chromium-Nitride (AlCrN) Aluminum-Titanium-Nitride (AlTiN), and Titanium-Nitride (TiN).