Feature:1. Diverse specifications, suitable for a variety of processing occasion2. Well packed for easy transportation and storage3. Made of high quality high speed steel material, and long service life4. The drill bit is roasted yellow, which has higher wear and can reduce the friction coefficient5. Including 13pcs drill bits, easy to install and replaceSpecification:Item Type: Twisted Drill BitMaterial: High Speed SteelCutting Diameter: 1.0-6.5mmChip Flute Length: 8mmMaximum Cutting Depth: 10mmVertex Angle of Outer Blade: 135°Blade Length: 2mmBlade Diameter: 5mmDrill Bit Specifications: 1.5mm / 2mm / 2.5mm / 3mm / 3.2mm / 3.5mm / 4mm / 4.5mm / 4.8mm / 5mm / 5.5mm / 6mm / 6.5mmPackage List:13 x Twisted Drill BitNotice:The twisted drill bits have high hardness and brittleness. When swinging too much, there is a danger of breakage. Please pay attention to the use of safety. For drilling thick stainless steel products such as stainless steel, you can add water or cooling fluid while drilling to reduce the temperature during the drilling process. Damage to the drill bit due to high temperature