Features Hard High Speed Steel: Made of good quality high speed steel, possess high hardness, hard and rust proof, sturdy and durable Efficient, Time and Labor Saving: One time processing, drilling, tapping, deburring, and countersinking, one tool with multiple functions. Efficient, time saving and labor saving Prevent from Damage: The back taper extends beyond the tap to prevent the thread from being damaged by over drilling 6 Kinds of Specifications: Specifications include M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5, very versatile For Low Hardness Materials: Suitable for drilling of low hardness materials such as wood, aluminum plate, plate, plastic, iron sheet, etc. Specification: Item Type: Drill Tap Bit Set Material: High speed steel Tap Style: Spiral flute Hex Handle Specifications: Diameter: Approx. 6.35mm / 0.3in Thread Type: Coarse thread Specification: M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5 Purpose: Tools for hole machining Applicable Scenarios: Suitable for drilling and processing of low hardness materials such as wood, aluminum plate, plate, plastic, iron sheet, etc. Package List: 6 x Drill Tap Bit Package List 6 x Drill Tap Bit