Oelheld added TC-X 630 to its SintoGrind series of grinding fluids. The fluid is made from gas-to-liquid base oils and contains no sulfur, aromatics or nitrogen, the company claims. The product is designed for flute, profile and both outside and inside diameter grinding. It can be used on materials such as tungsten carbide, polycrystalline diamond, cubic boron nitride, cermet and ceramics, and on hollow structural sections. Oelheld also stated that the fluid exhibits stable viscosity over a wide temperature spectrum. Web: www.oelheld.com