Containing Sizes:1mm 1.5mm 2mm 2.5mm 3mm 10pcs X 2.0mm Material :High Speed Steel with Titanium coated Drill Bit Set For Wood And Aluminum 10pcs X 2.5mm and high quality. Note: It is manual measurement there may be 2-3mm error. And item color displayed in photos may be showing slightly different on your computer since monitors are not calibrated same. understand. 10pcs X 1.5mm For DIY Home And Building/Engineering Using Can not use for Stainless Steel Material Quantity: 1 10pcs X 1.0mm Carbide Tipped Hole Saw Bit Brocas Pa 5 Mm Masonry Bit Bit 1 3/8 1/2 Metal Bit