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 BitProduct Material: High Speed SteelBlade Diameter: Approx. 28mm / 1.1inUses: Suitable for Iron, Aluminum, Copper, Stainless Steel, High Speed Steel, Manganese Steel, Various Quenched Steel Parts.Package List:1 xDrill Bit