8pcs Diamond Twist Drill Bits 0.8/1.0/1.2/1.5/1.8/2.0/2.5/3.0mm for Jade, Glass, Beads, Shells, Suitable for Bench Drill, Hanging Mill

The package includes: 8 diamond twist drill bits in sizes 0.8 / 1.0 / 1.2 / 1.5 / 1.8 / 2.0 / 2.5 / 3.0 mm, one bit of each size. This twist drill bit set has different sizes to meet your various drilling requirements. Material: Made of diamond using spiral technology, it has both toughness and hardness, and is not easy to break. The drill bit is sharp and allows for easy chip removal. Applicable Machines: Widely used in rotary tools such as hand drills, pillar drills, flexible shafts, bench drills, and overhead drills. Application: Suitable for drilling small holes in glass, metal, shells, jade, pearls, marble, stone, drywall, and wire. Due to the different hardnesses of the material, the effect is also different.
Note: Adding coolant can increase working efficiency and extend service life.