ITEM NAME:6pcs M3 M4 M5 M6 M8 M10 HSS Machine Screw Thread Metric Plug Hand Tap Drill Bits 100% brand new and high quality Features: Multicoated optics guarantee superior light transmission and brightness Ideal for auto repair and machinery where metric threads are specified Suitable for soft tapping metal, aluminum, iron Specifications: Head Diameter:M3,M4,M5,M6,M8,M10 Thread: M3-0.5 M4-0.7 M5-0.8 M6-1.0 M8-1.25 M10-1.5 Material: High Speed Steel Color: As the pictures shown Quantity: 6 Pc Note: 1.Please allow 1-3mm error due to manual measurement..Material: High Speed Steel. Also note that monitor settings may vary from computer to computer and may distort actual colors. If you have any problems, we are very glad to help you.