General description The AlwaysH 10pcs Twist Drill Bit set is specially designed for bead punching, processing, and jewelry making. Made from high-quality metal, these drill bits offer a long service life and are equipped with a plastic storage case for convenient transport and easy use. Technical specifications Quantity: 10 pieces Drill bit diameter: 0.3 mm Material: High-quality metal Features: High hardness, wear and heat resistance Usage These twist drill bits are ideal for precision drilling in beads and jewelry making, providing excellent drilling performance.