Feature: 147pcs Rotary Tool Accessories Drill Bits Kit Used for wood, metal, etc. material engraving, polishing and cutting. Includes grinding paste, grinding stone, sandpaper, polishing wheel, polishing paste, nylon brush, steel wire brush drill, connecting rods, etc. The Cutting Piece: Suitable for cutting metal Sandpaper Ring: Suitable for grinding wood, must cooperate with rubber connecting shaft to easily use Steel wire brush: Used for metal surface rust removal, etc Grinding head: Suitable for metal surface rust , burr polishing. Specification: Color: As Pictures Show Quantity:1 Set(147pcs) Shank diameter: approx. 3mm; Shank length: approx.35mmincludes:1 set x 147pcs Electric Grinding Accessories About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.