Round Die DIN 223 (DIN EN 22568) HSS - UNC 2.1/4" x 4.1/2

• for general-purpose use
• well-machinable materials up to 800 N/mm²
• unalloyed and low-alloy steels

Note Select the round die by external thread size, thread system, and holder compatibility before using it on the workpiece.

• The round die format is a standard choice for external thread cutting and reworking.
• The thread designation UNC 2.1/4 gives a precise reference for the workpiece thread.
• The DIN standard named in the product title supports clear product identification.
• Defined die selection helps separate external-thread cutting from internal tapping and gauging.

• A round die requires a matching holder and square starting alignment, so use a guide or suitable holder setup when alignment is difficult.

1. Confirm that the required external thread is UNC 2.1/4 before selecting the die.
2. Choose a holder that matches the die shape and size.
3. Prepare the bolt, stud, or shaft with a clean start chamfer.
4. Apply cutting fluid that fits the workpiece material and process.
5. Place the die square to the workpiece axis before turning.
6. Cut or rework the thread with controlled pressure and steady alignment.
7. Reverse carefully when needed to clear chips from the cutting area.
8. Clean the finished external thread before assembly.
9. Check the thread with a matching nut, gauge, or inspection process where required.

• 1 piece Round Die DIN 223 (DIN EN 22568) HSS - UNC 2.1/4" x 4.1/2

• Product type: round die
• Thread system: UNC
• Thread designation: UNC 2.1/4
• Standard: DIN 223
• Material: HSS
• Die form: round die
• Thread target: external threads
• Direction: RH
• Package quantity: 1

What thread does this die cut?

It cuts or reworks an external thread for UNC 2.1/4 when the workpiece and drawing match the product data.

Is this tool for internal or external threads?

The die is for external threads, while internal threads require a matching tap for UNC 2.1/4.

Which holder do you need?

Use a suitable round-die holder that supports the die form and keeps the tool square to the workpiece axis.

What should you check before starting?

Check the external diameter preparation, start chamfer, thread direction, holder setup, and lubrication before applying torque.

Can it be used as a gauge?

No, the die is a cutting or reworking tool and final inspection should use the required gauge or quality process.

Where can you find round die information?

Additional round die information is available here: Technical information round dies as PDF

What prevents damage during reworking?

A clean start, square alignment, and low controlled pressure prevent the die from crossing or tearing the first threads.

Where can you find the threading tools catalog?

You can find the threading tools catalog here: VD 23 catalog as PDF