A wide selection of diamond grit bits suitable for use with rotary tools Features: Various sizes and shapes included in this set are useful for many applications including deburring and engraving Suitable uses include filing glass, plastics, tiles, wood, stone, fibreglass, brick, ceramics and various metals Can be used with a wide range of rotary tools Supplied in a plastic case for easy storage Specification: Bit Length: 45mm Shank Diameter: 3mm Diamond: 150 grit