Specifications: Made from high quality HSS material, this drill bits set features higher hardness and better durability. It is applicable to different types of metals such as carbon steel, ordinary steel, copper, aluminum alloy, etc. You can use them for hole drilling, tapping, deburring and countersinking in one operation with power drill, which saves the labor and time. Item Name: Drill Bits Material: Titanium Plated HSS Quantity: 6Pcs/Set Metric Type: M3x0.5, M4x0.7, M5x0.8, M6x1.0, M8x1.25, M10x1.50 Feature: Durable, Rust Resistant, Wide Application, Hardware Tool M3x0.5 Diameter: 0.3cm/0.12" (Approx.) M4x0.7 Diameter: 0.4cm/0.16" (Approx.) M5x0.8 Diameter: 0.5cm/0.20" (Approx.) M6x1.0 Diameter: 0.6cm/0.24" (Approx.) M8x1.25 Diameter: 0.8cm/0.31" (Approx.) M10x1.50 Diameter: 1cm/0.39" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 6 x Drill Bits (M3 + M4 + M5 + M6 + M8 + M10)