Divided sintered hollow diamond holesaw is specially designed for use on very hard pavement of the type Gress, ceramics, granite, marble, stone facing, earthenware, glazed ceramics, basalt paving EUTIT, clay facing, sandstone and fibreglass. Holesaws drill very quickly with clean cuts without greater disruption of the surface. It is a perfect helper for tilers, electricians and plumbers. The holesaws are clamped directly to an angle grinder´s spindle.