Tapered Drill Steel


Tapered drill steel, also known as twist drill bit or twist drill, is a common type of drill bit that is used for drilling holes in various materials such as wood, metal, and plastic. Its main feature is the tapered, helical flute design that runs along the length of the bit.

Here are some key characteristics of tapered drill steel:

  1. Tapered Shape: The drill bit tapers from a larger diameter at the shank (the part that connects to the drill) to a smaller diameter at the tip. This design helps in easier penetration and chip removal.
  2. Helical Flutes: The twisted, helical flutes wrap around the bit and serve multiple purposes. They provide a cutting edge, help channel away cuttings (chips), and allow coolant or lubricant to reach the cutting zone.
  3. Cutting Edges: The edges of the flutes are sharpened to form cutting lips. As the drill rotates, these lips scrape and shear away material to create the hole.
  4. Point Angle: The tip of the drill bit has a specific point angle that determines its cutting characteristics. Different point angles are suitable for different materials and applications.
  5. Material: Tapered drill steel is typically made from high-carbon steel or alloy steel that has been hardened and tempered to provide the necessary strength, durability, and wear resistance.


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