Easy Drilling Starts - The Pilot Drill Bit for diamond core cutters enables an easy drilling start. This bit is suitable for performing applications on building materials such as limestone, brick and masonry and is appropriate for use with various core drills. Features and Benefits • For Easy Drilling Starts • Pilot Drill Bit for diamond core cutters enables an easy drilling start • Suitable for performing applications on building materials such as limestone, brick and masonry Specifications Total length: 300mm