30 Pcs 3mm diameter cylinder shaped head, 2.3mm diameter shank, diamond grinding bits in a protective plastic case, can be used for engraving or carving in glass, tile, ceramic, etc.
Diamond grinding bits are perfect for use with your high speed drilling or grinding tool, such as for dremel (not included here).
Head Size: 3mm x 10mm / 0.12" x 0.4"(D*L); Shank Size: 2.3mm (Diameter)
Product Name: Diamond Mounted Point; Main Material: Diamond Coated Head, Metal Shank
Weight: 90g; Package Content: 30pcs x Diamond Mounted Point, 1 x Plastic Case
Head Shape: Cylinder; Main Color: Silver Tone
Total Length: 45mm / 1.8" (Approx)