Shapes?? smoothes or grinds especially hard materials including: stainless steel?? cast iron?? metals?? fired ceramics?? plastics and hard woods</br>A high-speed cutter made of tungsten carbide?? the hardest material next to diamonds</br>Use higher speeds for hard woods?? slower speeds for metals and very slow speeds for plastics</br>Use the sides of the cutter (Rather than the tip) for effective cutting</br></br>Product Description</br></br>CUTTER1/8"STN9903</br><br/>http://www.amazon.com/gp/product/B002XZVPCCCggin S