1、This set of taps and dies are made of high speed alloy steel, with durability and long service life 2、Adjustable wrench can easily and firmly clamp taps or dies. Mainly used for hand tapping and threading operation 3、This set contains many taps and dies in different size for various tapping and threading 4、It is a great tool set used to cut or form the female and male portion of nuts or bolts 5、This tool set included wrenches, screwdriver, metric thread gauge, making your work convenient and smooth Features: This set of taps and dies are made of high speed alloy steel, with durability and long service life. Adjustable wrench can easily and firmly clamp taps or dies. Mainly used for hand tapping and threading operation. This set contains many taps and dies in different size for various tapping and threading. It is a great tool set used to cut or form the female and male portion of nuts or bolts. This tool set included wrenches, screwdriver, metric thread gauge, making your work convenient and smooth. Specifications: Material: alloy steel Number of products: 40 pieces Purpose of products: hand use Product size: 31.1cm * 14.3cm * 2cm/12.24 * 5.63 * 0.79inch Dies(17pcs):M3X0.5, M4X0.7, M5X0.8, M6X0.75, M7X0.75, M8X1.0, M10X1.25, M12X1.5, M3X0.6, M4X0.75, M5X0.9, M6X1.0, M7X1.0, M8X1.25, M10X1.5, M12X1.75,1/8NPT Taps(17pcs):M3X0.5, M4X0.7, M5X0.8, M6X0.75, M7X0.75, M8X1.0, M10X1.25, M12X1.5, M3X0.6, M4X0.75, M5X0.9, M6X1.0, M7X1.0, M8X1.25, M10X1.5, M12X1.75,1/8NPT Die Wrenches: M25 Tap Wrenches: M3-M12 Package Included: 17 x Dies 17 x Taps 1 x Die Wrenches 1 x Tap Wrenches 1 x Screwdriver 1 x Metric Thread Gauge 1 x T Wrench1 x Wrench Rod 1 x Blue Plastic Box