Small Size: This set contains five taps of different sizes: M3*0.5, M4*0.7, M5*0.8, M6*1.0, M8*1.25. T Tap Wrench Size: 80*60mm/3.15*2.63in High Quality Material: The key is made of ball bearing steel, the taps are made of high speed steel. They are durable and firm, not easy to break or bend Humanized Regulator: It can be easily switch from positive to negative by the humanized adjustment, the middle is the lock for non-rattling use. Besides, the tool with a ratchet mechanism makes it easy to cut and remove even in the narrow space Save Your Efforts: The tap holder bar provides perfect hand support, allows you to pick up your forces at a point you want Versatile: Suitable for auto repair and machinery with specified metric threads and for machining and drilling 5pcs Set Hand Straight Flute Taps Assortment M3 M4 M5 M6 M8 Steel with 1pc Tap Wrench for Thread Insert    -Various sizes: Wire size: M3*0.5, M4*0.7, M5*0.8, M6*1.0, M8*1.25. Different sizes are available, so you can freely choose what you need.    -Design: Adjustable T-ratchet, use with taps, can be used as screw extractors and other tools with a square shank.   -Spare Your Efforts: The tap holder bar provides perfect hand support, allows you to pick up your forces at a point you want.   -High quality material: The key is made of ball bearing steel, the taps are made of high speed steel. They are durable and firm, not easy to break or bend.    -Application: Tapping tools can be used on soft surfaces, e.g. wood, plastic, aluminum etc... They are not for high hardness materials. Specifications Condition: 100% Brand New Material: Bearing Steel(Tap Wrench) + High Speed Steel(Taps) Style of struck: Right Strike Key Range: M3-M8 Thread model: M3*0.5, M4*0.7, M5*0.8, M6*1.0, M8*1.25 Package includes: 5PCS Taps + 1PC Tap Wrench Notes: </ Manual measurement, please allow a slight error and check the size before purchasing. Please allow slight errors in product size and color due to method difference measurement and display screens.