Features 8pcs in 1 Set: Including 8pcs Combination Taps, Sufficient in Quantity, Can Be Used And Replaced at Any Time. Spiral Flute: These Taps Are Designed with Spiral Flute, Which Has Better Chip Removal Effect, Stable And Efficient Operation. Multiple Sizes: Including 6 Different Sizes of Taps, The Thread Is Standard, Suitable for Various Tapping Needs. Durable Material: Using High Speed Steel Material, with Ti Plated Surface, with High Hardness And Rust Resistance. 1/4in Hex Shank: 1/4in Hex Shank Design, Easy to Install, Can Be Used for Drilling, Tapping And Chamfering, Etc. Specification: Item Type: Spiral Flute Tap Material: High Speed Steel Application: Used for drilling, tapping, chamfering Surface Treatment: Ti plating Color: Gold + Silver Tap Specifications: M3x0.5mm, M4x0.7mm (2pcs), M5x0.8mm, M6x1mm (2pcs), M8x1.25mm, M10x1.5mm Tap Shank Type: Hex Shank Tap Shank Size: 1/4in SpecificationThread PitchDiameterDrilling LengthTapping LengthTotal LengthM30.5mm3mm7mm / 0.28in12mm / 0.47in65mm / 2.56inM40.7mm4mm7mm / 0.28in14mm / 0.55in65mm / 2.56inM50.8mm5mm8mm / 0.31in15mm / 0.59in67mm / 2.64inM61mm6mm9mm / 0.35in15mm / 0.59in68mm / 2.68inM81.25mm8mm11mm / 0.43in21mm / 0.83in69mm / 2.72inM101.5mm10mm13mm / 0.51in23mm / 0.91in70mm / 2.76in Package List: 8 x Spiral Flute Tap Note: When taps are used for drilling, please bring protective equipment to prevent the debris from splashing and hurting yourself. Package List 8 x Spiral Flute Tap