Feature 1HIGH SPEED STEEL MATERIAL: High quality high speed steel, nanometer blue coating, high hardness, oxidation resistance and good durability. 2MULTIPLE SPECIFICATIONS: Including six sizes, 1/840, 5/3232, 3/1624, 1/420, 5/1618, 3/816, to meet different needs . 3COMBINATION OF DRILLING AND TAPPING: Excellent performance, this drill bits set can quickly drill, tap, deburr and countersink. 4WIDE RANGE OF APPLICATIONS: Suitable for drilling, tapping and cutting wood, soft metals, aluminum plates, iron, etc. 5QUICK REPLACEMENT: Easy to install and use, wear resistant, not easy to deform, easier and safer to install into power tools.Item Type: Tap Drill Bit SetMaterial: High Speed SteelColor: BlueWeight: Approx. 84g / 3ozProduct Specifications: 1/8-40, 5/32-32, 3/16-24, 1/4-20, 5/16-18, 3/8-16Scope of Application: Drilling, punching and cutting of wood, soft metals, aluminum plates, iron and other materials .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List6 x Tap Drill Bits