Features: & , 6pcs high speed steel 3-8mm cobalt drill bit set woodworking drill. The surface is titanium coated. The round shank is suitable for most electric drilling rigs. Drill bits of different sizes can create holes of different sizes. Suitable for drilling holes in wood, thin plastics, aluminum alloys, etc. The blade is sharp and can be used to drill thin boards such as wood or horizontally after drilling. Product Parameters:Material: High Speed SteelSurface Material: Titanium Tool Holder Shape: Round Drill Size (Approx.): 3mm, 4mm, 5mm, 6mm, 6.5mm, 8mm Length: As Shown Quantity: 6pcs (1pcs each for 3mm, 4mm, 5mm, 6mm, 6.5mm, 8mm)Packing List:6*Drill BitsNote:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.