Ordering Special Dies

Special Dies can be manufactured in any quantity from one piece to hundreds. As prices for specials are based on the quantities ordered, please contact our order desk for a quotation of your needs.

When ordering special dies the more information we have will enable us to determine the correct tool for your application. Below is a list of information required to accurately quote:



Diameter
Pitch
Class of Fit
Right or Left Hand
Thread Form
Lead - Single, Double etc.
Solid or Split Adjusting
Material to be threaded
Cutting new threads or rethreading existing thread
Outside diameter & thickness of die
Length of part to be threaded
Special features which might affect the die

*****Submit drawings or prints if possible*****

Please sent completed form to sales@taylortool.com or  FAX to 519-658-6799

Taper, Plug and Bottoming -- What is the big freakin’ difference?

Taper, Plug and Bottoming -- What is the big freakin’ difference?

Taper, Plug and Bottoming --  What is the big freakin’ difference?

The most common hand taps are called taper, plug, and bottoming.

All three look very similar with the only difference being the bevel angle at the tip (the amount of threading on the tip).



Taper, Plug and Bottoming Compartive View

Taper, Plug and Bottoming are identical except for the bevel angle at the tip. The bevel serves two purposes: it guides the tap into the hole and it ramp cuts the undeveloped first threads.

Taper taps have the longest bevel angle.
Plug taps are the most common and have 3 to 5 undeveloped threads on the bevel.
Bottoming taps have only 1 to 1 1/2 undeveloped threads at the tip and should be used only when full amount of threads cannot be achieved by the other two taps.
The number of flutes and the geometry of the cutting edge will depend on the material tapped.