Details:* Portable and stationary use (in punch press).* Parting point tip 135 points.* HSSS-co drill bit set for high strength steel, such as stainless steel.* It is difficult to machine the workpiece can be processed with stainless steel, tool steel, through heat treatment, * M35 high-speed cobalt steel with high hardness, high wear resistance and high hardness.* Cobalt alloy to improve heat resistance, which will work and exceed normal HSS bits, especially if your work involves difficult metals * Radial drill, bench drill or handheld drill chuck can be used for drilling.* Material: hss-co M35 Cobalt * Color: as pictures show * Surface treatment: burnt yellow * Diameter: 1-13mm * Shank: round * Application: working holes of stainless steel, steel, iron, aluminum and other metal pipes.* Quantity: 1pc Package Content: 1*M35 Cobalt DrillNote: 1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.