Details: *Portable and stationary use(in punch press). *135 point split point tip. *HSS- Drill Set for high strength steel, such as stainless steel. *It is difficult to machine the workpiece can be processed in stainless steel, tool steel, through heat treatment, *M35 high speed steel cobalt for high hardness, high wear resistance and high hardness. *Cobalt alloy to improve heat resistance that will work and exceed normal HSS bits, especially if your work involves difficult metals *Radial drill, drill or manual drill chuck can be used for drilling operations. *Material: HSS- M35 Cobalt *Color: As Pictures Show * treatment: Roasted Yellow *Diameter: 1-13mm *Shank: Round *Application: Stainless steel, steel, iron, aluminum and other metal pipes job openings. *Quantity: 1pc Package Contents: 1*M35 Cobalt Drill Bit Note: 1.The real color 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. Made from high-quality materials, our tools products are durable and affordable to meet your daily needs. Please check the product size and model before placing an order to ensure it is the product you need. When you encounter a problem, please contact us and we will help until the problem is perfectly solved. When you receive your product, whether you are satisfied or not, we want to hear your opinion. Every customer can enjoy free refund or exchange service for damaged/quality problem products.