加工条件・トラブルシュート | オーエスジー

Metric Thread Pilot Hole Diameter of Grooveless Tap

New Roll Tap (NRT/XPF Series)

* Currently, the high roll tap (HRT series) is discontinued.

Are you using a synchronous feed mechanism and a float type tapper at the same time?

Even if the machine adjusts the pitch of one revolution, the Tupperware will float due to the load during machining, and the feed of the tap will be shifted.

When tapping with equipm

In the tapping process, the state in which the thread of the internal thread is thin, as if it has been gouged out, is called "mountain thinness". There are several possible causes for such a shape.
・ Misalignment of the tap
・Welding
And so on...

Here are some additional points to note:

・Axial expansion

The following points should be paid special attention to when tapping.

(1) Tap selection

Check whether you are using a tap that is suitable for the type and hardness of the material from the list of suitable materials in the catalog. Depending on the through hole or bli

What is the tool diameter of the pilot hole and the tap of the American standard pipe screw? NPT NPSC NPTF NPSF

・ Pilot hole diameter

When machining pilot holes with a drill, refer to the value of "When not using a reamer" in the table below.

• Tool diameter of the tap

For the tool diameter when calculating the cutting data, refer to the number on the outer d

What is the pilot hole diameter and the tool diameter of the tap? Rc PT G PF

Please refer to the following link for the pilot hole diameter of the pipe screw.

You can check the pilot hole diameter and tap outer diameter of the following screws.
Tapered screw fo

No, you can't.

If the pilot hole is pierced but the screw is not, consider it a "stop hole" and use spiral fluted tap .

In spiral pointed tap threading, chips leave the material only when the tap chamfer is completely penetrated.
If the spiral pointed tap