Tap and Die Set (Metric) is the all-purpose set for your garage or shop. These tapered plug taps and dies are the most commonly used style and are perfect for most hand threading applications. They are known for their ability to start easily, either cutting new material or chasing lightly threads. With proper technique and the right lubricant, these taps and dies will cut mild carbon and alloy steel, cast iron, aluminum, brass and bronze. Features - ColorAssorted Color - Size: 15.5 .5 x 1.5cm. - Material: HSS. - Applicable scope: manual. - Package includes: 2 total length 25mm; 2 x .1 Taps total length 25mm; 2 x .2 Tap total length 28mm; 2 x .4 Taps total length 28mm; 2 x .6 tap total length 30mm; 2 x .8 Taps total length 30mm; 2 total length 35mm; 2 x M2.2 Taps total length 35mm; 2 x M2.5 Taps total length 40mm; 9 x Diels / .1 / .2 / .4 / .6 / .8 / / M2.2 and M2.5; A mold base full length 125mm; 1 internal mold holder/reducer total length 16mm; 2 tap holders. - For use with metal and plastic - Small and compact. HSS for strength and durability. Works fine. - If you are cutting loads of or using tap and dies regularly you need HSS. - for model making / watchmaking or small engineering work. - Supplied in a blow molded tray, for easy storage and transporting. Package list: 1 x 31PCS Mini Metric Tap and Die Set with Thread Cutters Round Die Wrench