20 Pcs Diamond Rotary Burr Set, Engraving Bit Set with 3mm (1/8") Shank, Diamond Coated Drill Bit for Rotary Tool Grinding, Polishing, DIY Engraving, Drilling

General DescriptionThe 20 piece diamond drill bit set for rotary tools is designed to meet a variety of engraving and polishing needs. With various shapes such as spherical, pointed cone, cylindrical, oval, pointed and flat rectangular, this set is ideal for home decoration and crafts.The drill bits are capable of engraving on hard materials such as tiles, ceramics, marble and granite, providing exquisite craftsmanship.Technical specificationsNumber of pieces: 20Shank: 3 mm (1/8')Material: quality diamond particles, thick and durableResistance: high hardness, impact and wear resistantCompatibility and accessoriesCompatible with most rotary tools thanks to the 3 shank mmUsageIdeal for grinding, cutting, engraving and drillingSuitable for fine detail work in craft makingImproves efficiency through high grinding speed and precisionOther InformationDiamond drill bits have a long service life, with no obvious wear even after prolonged use.