Extension piece 400 mm 1 1/4″UNC

Because this is an accessory, it is not a standalone tool. It only works in combination with the right machine and the matching attachment. Therefore, check before you order that the thread size fits on both ends.

What does 1 1/4″UNC mean?

UNC stands for Unified National Coarse and is a coarse inch thread. The designation 1 1/4″ indicates the nominal diameter of that thread. An extension piece with this thread only fits tools with the same thread size. Threads of a different type or size will not fit, even if they look very similar to the eye.

Who is a 400 mm extension piece intended for?

A length of 400 mm is useful if you need extra depth or distance. Think of drilling through thicker structures, or situations where the machine cannot be placed close to the workpiece. If you need less length, there is also a shorter 200 mm extension piece with the same thread size. That way you choose the length that suits your job.

Check compatibility before you order

First look at the thread size of your machine and of the attachment you want to extend. Keep in mind that a longer extension gives more leverage, which can affect how you work. If you are unsure whether this part fits your setup, please contact Proffix. This article is available to order, with a delivery time to be agreed.

Frequently asked questions

What is the article number of this extension piece?

The article number (SKU) is DX 985548. You can use this number when you contact Proffix about the product.

Is this extension piece available from stock?

No, the product is made to order and the delivery time is determined in consultation.

Are there other lengths with the same thread?

Yes, in the tool accessories category you will find, among others, a 200 mm extension piece with 1 1/4″UNC thread.