Machine Taps

A machine tap is a cutting tool used in machining operations to create internal threads in a previously drilled hole. It is designed to cut or form threads in a variety of materials, including metal, plastic, and wood. Here are some key features and characteristics that describe a typical machine tap: Thread Cutting: A machine tap is specifically designed for cutting threads inside a pre-drilled hole. It features cutting edges along its length that gradually form the threaded pattern as it rotates into the material. Flutes: Machine taps typically have flutes, which are spiral or helical grooves along the length of the tap. The flutes help to evacuate chips (cut material) from the hole as the tap is rotated, preventing clogging and facilitating a smoother threading process. Taper, Plug, or Bottoming: There are different types of machine taps, including taper taps, plug taps, and bottoming taps. Taper taps have a more gradual starting taper and are suitable for starting threads. Plug taps have a moderate taper and are used for general threading. Bottoming taps have a very short taper and are designed for threading close to the bottom of a blind hole. Materials and Coatings: Machine taps are made from materials such as high-speed steel (HSS) or cobalt, and they may have coatings like TiN (titanium nitride) or TiAlN (titanium aluminum nitride) to enhance hardness, reduce friction, and improve overall performance. Thread Size and Pitch: Machine taps are available in various sizes to produce threads of different diameters and pitches. The size and pitch of the tap should match the specifications of the desired thread. Square or Hexagonal Shank: The shank of the tap typically has a square or hexagonal shape to facilitate secure gripping and turning with a tap wrench or other compatible tool. Application: Machine taps are used in a range of applications, from general-purpose threading to specialized tasks in industries such as manufacturing, automotive, and metalworking. When using a machine tap, it's important to choose the correct tap size, type, and cutting speed for the specific material and application. Additionally, proper lubrication is often recommended to reduce friction, dissipate heat, and prolong the life of the tap.