Dremel Tungsten Carbide Cutting Bit is designed for use on hardened steel, fired ceramics, and other tough materials, making it a versatile tool for precision cutting tasks. Featuring a maximum cutting head size of 1/8" and a 1/8" shank, this cutting bit durability and efficiency for detailed work. Each bit measures 1-1/2" in length, with various diameter options available to suit different cutting needs, ensuring optimal performance and control for your projects. Model Number: 9901, 9902, 9903, 9904, 9905, 9906, 9909, 9910