[Materials] The spherical diamond drill is made of high -quality diamond material and metal. It is more durable and cuts more sharply. [Details] Vajrayana coating edge burr set includes 13 sizes: 0.5mm-8mm (see Figure 2). The diameter of the handle is 2.35mm (3 or 32 inch) [Widely used] King Kong stone drilling set, suitable for stone, ceramics, glass, hard alloy, tiles, marble, jewelry, rocks, etc. in the field of grinding and carving [Application] This diamond burr is very recommended for crafts, hobbies, family repair, jewelry, gem use, shape, etc. [Easy to use] 2.35 mm handle is suitable for most rotating tools, including for Dremel. Note: When using this product, replace the chip to the correct size (2.4mm) Material: Metal colour: Silver Package Contents: 13 x F needle ball head (0.5mm or 0.8mm or 1.0mm or 1.2mm or 1.5mm or 1.8mm or 2.0mm or 2.5mm or 3mm or 4mm or 5mm or 6mm or 8mm) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.