Feature: 1. Spiral Chip Removal Design: The drill bit adopts spiral chip removal design, which is easy to remove chips, fast cutting and high drilling efficiency. 2. High Quality Materials: Made of high quality high speed steel, the drill bit has high hardness, stable performance, sturdiness and durability. 3. Fine Workmanship: With fine workmanship, the cutting edge is finely ground and sharpened, which can meet different cutting accuracy. 4. 118° Angle Design: The drill bit has a 118° angle design, which can quickly and accurately drill holes, saving time and effort. 5. Uses: Suitable for iron, aluminum, copper, stainless steel, high speed steel, manganese steel, various quenched steel parts. Specification: Item Type: Drill Bit Product Material: High Speed Steel Blade Diameter: Approx. 28mm / 1.1in Uses: Suitable for Iron, Aluminum, Copper, Stainless Steel, High Speed Steel, Manganese Steel, Various Quenched Steel Parts. Package List: 1 x Drill Bit