Complete 337 pieces rotary accessories kit includes everything you need for cutting, grinding, carving, engraving, shaping, sanding, cleaning, polishing and much more. This set features many types of rotary tool accessory you could want. If you have a rotary / polishing tool, this will be a great additional item to go along your tools. Specifications: Package Weight: 330g / 11.64ounces Package Size: 170 * 150 * 40mm / 6.69 * 5.91 * 1.57in Packing List: 3 * Grinding Stone (type 1) 1/2-Inch Diameter 3 * Grinding Stone (type 2) 3/8-Inch Diameter Tapered 3 * Grinding Stone (type 3) 3/8-Inch Diameter 3 * Grinding Stone (type 4) 3/4-Inch Diameter Mounted Disc 36 * Cut off Wheel (Red) 15/16-Inch 36 * Cut off Wheel (Black) 15/16-Inch 10 * Felt Polishing Wheel (1/2-Inch) 4 * Polishing Cone (3/8-Inch tapered) 6 * Felt Polishing Wheel (1-Inch) 2 * Mandrel (screw type) 2 * Mandrel (standard type) 6 * Steel Wheel (3/4-Inch) 3 * Brass Wheel (3/4-Inch) 6 * Steel Cup (1/2-Inch) 3 * Brass Cup (1/2-Inch) 1 * Dressing Stone Wheel 2 * Colletts 208 * Sanding Discs 15/16-Inch