An Acme Thread Tap is used to cut the female threads inside the hole, a process called tapping. Like a screw, taps have threads that are used to cut the material as the tap is turned. After drilling a hole with the tap, you are ready to tap.
Taps usually have 2 to 4 longitudinal grooves, called flutes, which run through the threads and form the cutting edge on the thread profile. The flutes also allow the passage of chips and cutting lubricant. Flutes can be straight, angular, or spiral. The threaded end of the tap has a taper or chamfer to help guide it and drive the threads into the material as they enter the hole.
Acme Thread Taps are available in various diameters and depths. A threaded drill size can be obtained from the following formula: D = T2d, where D is the diameter of the threaded drill size, T is the diameter of the thread or bolt to be used, and d is the depth of the thread. Thread.
