special vitrified bond and bubble grain aluminium oxide

  Mounted points in hardness D are manufactured from a special vitrified bond and bubble grain aluminium oxide . The low bond volume in combination with the easy-to-break-down bubble grain makes this the softest mounted points in the product range. The hardness D is particularly suitable for work on soft materials such as plastic, rubber and wood, and is characterized by its high abrasiveness. Open structure and large chip spaces - through bubble grain aluminium oxide - Machining of temperature-sensitive materials without addition of cooling lubricant due to large chip spaces （Application examples）   Removal of burrs on plastic injection components Trimming of rubber moulded parts and moulded parts made of polyurethane (PUR) Grinding of wooden cores and wooden shapes in model construction workshops   Recommendations for use: Mounted points of hardness D achieve their best performance at a cutting speed of 5 to 20 m/s Flexible shafts, electric grinders and air-powered straight grinders are suitable as tool drives   Safety notes - The maximum permitted rotational speed refers to the unsupported shank length of 10 mm