Description The diamond burr drill bit set is perfect for precision drilling. The diamond coating ensures durability and long-lasting performance, these drill bits are suitable for drilling small holes, convenient installation and replacement. The burr glass drill bits provide precise drilling results. Features -Color:Silver -Material:Corundum -Size:4.30X0.23X0.23cm/1.69X0.09X0.09in -Size:1.90X0.10X0.10cm/0.75X0.04X0.04in -Rod diameter:2.35mm -This set of diamond-coated burr glass drill bits, perfect for a variety of drilling needs. -The durable diamond coating ensures long-lasting use and precise drilling results. -These drill bits are specifically designed for drilling small holes, making them ideal for delicate projects. -Allows for easy installation and replacement, making it convenient for users to switch between drill bits. -With these drill bits, users can achieve precise and clean drilling results on burr glass.Package list: 30 x drilling bits