M4 x .7 Taps. A tap is a cutting tool used to create internal threads in holes or drilled openings in various materials, including metal, plastic, and wood. The process of creating threads using a tap is called tapping. Taps are essential tools for manufacturing threaded components and for assembling parts with threaded connections.
Configurations for Metric Taps
Taper Tap
A taper tap, also called a starter tap, has a gradual thread profile. Typically they have 8-10 threads that are tapered and are used to start threads in a hole. They are designed to be used first in a series of tapping operations.
Plug Tap
A plug tap has a slightly shorter chamfer than a taper tap and is used to continue threading after the taper tap has started the threads. It's a versatile choice for many applications. They are extremely popular and are used for through holes and can even be used to start blind holes.
Bottom Tap
A bottom tap, also called a bottoming tap, has a very short chamfer and is used to thread close to the bottom of a blind hole where a through-hole doesn't exist.
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