Sufficient : you will get 40 pieces diamond burr bits sets, including 6 shapes, the and diverse shapes are enough to meet your daily using needs Sturdy Material: the grinding burrs drill bits set is made of diamond particle, sturdy, thick and reliable, with high hardness and impact resistance, can work for some fine detail work, and can serve you for a long time 6 Shapes: the diamond carving are designed in 6 different shapes, including sphere, cone, cylinder, round head cylinder, pointed, flat plat and more, which not only can meet your different requirements, but also work efficiency and save mote time and labor Universal : the diamond grinder bits set features with 1/8 inch , which with or die grinders, very and practical in Widely Applicable: the diamond drill grinding bit can be widely applied for polishing, grinding, drilling, cutting, engraving, carving, etc., it is also capable of engraving on a variety of materials, such as tiles, ceramics, marble, granite, and more; A very helper for a family Features: Made of quality material, the diamond grinding set is sturdy and long lasting to , perfect for fine detail work, such as polishing, sanding, grinding, cutting, engraving, carving, and more. These diamond burrs contain 6 different shapes, which are enough to meet the different requirements of carving enthusiasts and craftsmen. Specifications: Material: diamond particle Color: as shown Size: about 4.5 mm/ 0.18 inch long Package Contents: 40 x tool diamond burrs set (6 shapes) Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.