DIY Crafts Drill Bit Set 30xDiamond Grinding Burr Drill Bit Set Dremel Grinder Carving Rotaryh
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100% Brand Newy.Premium black diamond grinding.This carbide set is made from top quality solid material.Suitable for machining and grinding jade, stone, ceramics, glass, carbide, tungsten steel, etc., polishing, cutting.Suitable for molds, abrasive industry and machining industry.Main advantages:Advanced technology,Quality matrix,Good sharpness,High wear resistance,Cost-effective.Material:Steel shank and Diamond headShank diameter: 3mm(1/8in) .Total Length: 45mm/1.77in.Number: 30pcs(a box). Package List:30 x Diamond grinding