Threading Taps

Threading Taps for forming a screw thread in the workpiece. With a variety of differences such as thread angle, diameters both major and minor, helix angle, depth and pitch diameter.

Threading tools can be used manually, either on a lathe, a milling machine or on both.

Hand taps are available in 3 variations.  A taper (or first cut) hand tap is used to start the threading operation. The second tap then continues the threading process, with the bottom (or plug) tap is used to create the thread to the bottom of a blind hole.   Perfect for softer materials and for limited applications.

Machinists will normally use a spiral point and spiral flute.  With spiral point taps for machining through holes and spiral flute taps for machining blind holes.

In today's manufacturing processes machine taps (thread Mills) are more commonly used as they offer a much wider range of applications, and are able to be used on harder steels and are available with coatings if required. Directing chips away from the machining process alleviating any thread damage. Thread mills are available with through coolant for superfast machining.

With the added advantage of being easily removed should the thread mill break during machining.

The helix angle depends upon the hole form, eg. Through hole, blind hole, deep blind hole, etc. but the material, eg short chips, long chips also has a strong influence on the direction of the helix.

With many forms of threading variations including Metric which is more commonly used, UNC/UNF, BSP, BSW, BSPT, NPT/NPTF and Trapezoidal threads.

Prima Tooling’s impressive range of Threading Taps are available in four fantastic ranges: DIN, ISO, Automotive Tapping and the Tecline Performance series Taps.

For more information on the ranges and models of carbide endmills we have in stock, check out our engineering tooling catalogues, or get in touch with Prima Tooling today!