Hand Tools1.0-13mm Cobalt Coated Twist Drill Bit Set HSS M35 Drill Bit For Wood/Metal Hole Cutter Power ToolsFeatures:1. Straight round shank.2. M35 high speed steel with cobalt, super hard.3. Smooth surface to reduce friction, blade for fast drilling hole.4. Wear-resistant with long service time.5. Perfect for drilling metals and wood, such as: aluminum, iron, stainless steel.6. Suit to use with hand drill chuck, bench drill, radial drill etc.Specification:Type: Twist Drill BitMeterial: High speed steel M35Coating: CobaltDiameter: 1.0-13mmShank: RoundApplication: Stainless steel, steel, iron, aluminum and other metal pipes job openings.4pcs set including: 3 4 5 6mm each size 1pc5pcs set including: 4 5 6 8 10mm each size 1pc10pcs set including: 1 2 3 4 5 6 7 8 9 10mm each size 1pcNotePlease allow 1-3mm error due to manual measurement.Due to the difference between different monitors, the picture may not reflect the actual color of the item.