The MICRO 100 IAT-750-10 uncoated solid carbide, internal ACME internal threading tool. Designed and engineered for ACME profiles in internal threading applications. Each tool's cutting edge/tip has a distinctive mirror like finish that significantly adds to material removal while improving surface finishes. MICRO 100 Solid Carbide Tools feature more than just a micro-grain of excellent quality. Their substrate is in a class of its own resulting from exclusive treating processes that allow for vastly increased speed and feed rates. For over 45 years, MICRO 100 is a known industry leader and internationally acclaimed when it comes to solid carbide tooling.