6Pcs HSS High Speed Steel Drill Bits Bit Set 1/4" Shank Hexagonal Tap Metric Tap Thread Tapered Twist Drill Bit M3 M4 M5 M6 M8 M10Specifications:Name: hexagonal shank tap drill bitMetric: m3x0, 5, m4x0, 7, m5x0, 8, M6x1, m8x1, 25, m10x1, 5Material: High Speed Steel (HSS)Suitable for soft Metal, Aluminum, Iron Size:M3x0.5: Total Length: 55mm, Spiral Length: 24mm, Drill Diameter: 2.5mmM4x0.7: Total Length: 54mm, Spiral Length: 24mm, Drill Diameter: 3.3mmM5x0.8: Total Length: 58mm, Spiral Length: 28mm, Drill Diameter: 4.2mmM6x1: Total Length: 58mm, Spiral Length: 28mm, Drill Diameter: 5.0mmM8x1.25: Total Length: 59mm, Spiral Length: 18mm, Drill Diameter: 6.8mmM10x1.5: Total Length: 59mm, Spiral Length: 20mm, Drill Diameter: 8.5mm Square Chuck: 6.35mm(Note: Manual measurement can be a slight mistake, please understand!) Package Included:1 x M3 Hexagonal Chuck Compound Drill Tapping Bits1 x M4 Hexagonal Shank Compound Drill Tapping Bits1 x M5 Hexagonal Shank Compound Drill Tapping Bits1 x M6 Hexagonal Shank Compound Drill Tapping Bits1 x M8 Hexagonal Shank Compound Drill Tapping Bits1 x M10 Hexagonal Shank Compound Drill Tapping BitsBuyer Feedback: M4x0.7M5x0.8M6x1M8x1.25M10x1.51) we accept Alipay, West Union, TT. All major credit cards are accepted through the payment processor's secure escrow.2) payment must be made within 3 days of placing the order.3) if you are unable to check out immediately after the listing ends, please wait a few minutes and try again, payments must be completed within 3 days. About Shipping1.