7pcs High Hardness Diamond Coated Twist Drill Bit Set Needle - 6pcs

This twist drill bits set including 7pcs micro drills in different sizes is a perfect tool for fine drilling of jewelry. It also can be used for many other usage and it is really useful and practical.Features:This micro twist drill bits set is a perfect tool for fine drilling of jewelry.7pcs in a set different sizes for meet varied requirements.The drill bits made of high quality material and coated with diamond particles have high hardness not easy to break and durable to use.Suitable for drilling jewelry ceramic glass semiconductor materials etc.Specifications:Material: High Speed Steel + DiamondDrill Diameter: 0.8mm / 1.0mm / 1.2mm / 1.5mm / 2.0mm / 2.5mm / 3mmDrill Length: 21mm / 26mm / 29mm / 36mm / 44mm / 51mm / 54mmItem Weight(total): 5g / 0.17ozPackage Size: 14.5 * 9.5 * 0.5cm / 5.71 * 3.74 * 0.19inPackage Weight: 7g / 0.26ozPackage List:7 * Drills