![]() ![]() The type of material you’re working with, the diameter of the hole, and the required precision of the threads are all important factors to consider. What factors should I consider when selecting a thread tap? Thread taps are commonly made from materials like alloy, high-carbon, and high-speed steel. ![]() What materials are used to make thread taps? The taper thread tap is used first, followed by the intermediate and finishing taps as needed. ![]() Thread taps are used by first drilling a hole with an appropriately sized tap drill, attaching the tap to a drill, and then using the tap to create the thread. Each type has its unique features and applications. There are several types of thread taps including hand taps, machine taps, gas taps, extension taps, form taps, master taps, machine screw taps, stay bolt taps, punch taps, and spiral flute taps. What are the different types of thread taps? They are typically used in the manufacturing of bolts, nuts, and similar objects. Thread taps are cutting tools designed for creating threads in holes in metals. What are thread taps and what are they used for? This chart shows different tap sizes with t heir diameter and other properties. Also, the machinist should move the thread tap forward and backward during the process. However, it is vital to ensure that the drilled hole is appropriate for the tap is vital. If it’s a blind hole, take out the tap occasionally to dispose of chips.After using the taper tap, use the intermediate and finishing tap to complete the process as the case requires. ![]() Ensure adequate lubricant is applied while tapping.After moving through a few threads, check if the tap is still moving in a straight line.Then, the taper thread tap is up next.File the thread tap while attached to the drill.First, bore a hole using a tap drill of the appropriate size for the thread.If you want to machine a threaded hole, here’s the process to follow: Some taps could also be hand-oriented, e.g., right or left-handed thread taps. There are also some custom thread taps machinists get made to suit themselves. Some taps are also used for special functions, such as the ACME thread taps. They are also a good choice for threading blind holes because they can eject cut metal up and out of the hole. Spiral taps are similar to the end mill in shape. They are better for use in softer metals like aluminum and brass. It is also different in mode of operation such that it doesn’t cut the metal but pushes and compresses it. This tap is different from others in that it doesn’t have flutes on its body but has threads all over. Machinists use them for making threads in deep spots such as pulley hubs. These taps are just like hand taps, but they have a longer shank. This tap has 1.5 of its thread at the lower portion chamfered and ¾ taper per foot. These threads are suitable for fittings where gas or liquid pipes are meant to pass through. Just like the name implies, this thread tap functions in drilling gas-type threads. The tap drills usually have a special holder for the machine drills to allow easy attachment. Machinists use this tap in combination with a tap drill machine. However, if the hole goes through both sides, machinists use only the taper and the intermediate taps. The bottoming tap is best suited for threading holes that do not go completely through the workpiece. It comes in use after the intermediate tap and has 1 – 1.5 threads on its body. This is the last tap of the hand tap set. It has 3 – 5 threads on its body which function to shape and give depth to threads made by the taper tap. It is common so you might find this in any machine shop. It has 8 – 10 threads on its body, which do the actual threading work. When using hand taps, this is the first tap used on the workpiece. Hand taps usually come in a set of three taps known as the taper tap, the second/intermediate/plug tap, and the bottoming/finish tap. However, they’re not advisable to use for CNC machining procedures as they do not produce the best threads. These are the most common type of thread taps. In this section, we’ll go through the various types of thread taps, their unique features, and their advantages. ![]()
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