The VÖLKEL Round Die UNF 1/2 x 20 made of high-speed steel (HSS) is engineered for precision external thread cutting in workshop and assembly operations. It offers a clean thread start, reliable chip formation and dimensional accuracy – ideal for maintenance, repair and small series production.
Advantages:
Which materials can I use this die for?
Suitable for non-abrasive materials up to 800 N/mm² such as unalloyed and low-alloy steels.
What standards apply?
Thread according to ANSI B 1.1 (UNF); die according to BS 1127; 1950.
What holder do I need?
A die holder for outside diameter 1.1/2 (o/d).
Should I use cutting oil?
Yes – lubrication improves cutting performance, surface finish, and tool life.
Where can I find detailed technical data?
See the Technical Information PDF.
Questions about selection or use? Our team is happy to assist – use the contact form.
| Type of thread | Unified Fine Thread |
|---|---|
| Standard | BS 1127; 1950 |
| Form | splitted version (Form A) |
| Material | HSS |
| Tolerance | 2A |
| Size | UNF 1/2 x 20 |
| Overall length (L1) | 1/2 Width |
| Outer diameter | 1.1/2 |
| EAN | 4022835830429 |
| Item number | 83042 |
| Thread standard | ANSI B1.1 |
| Rec. Bolt diameter | 12.56 mm |
Be the first to review “Round Die BS 1127; 1950 (o/d 1.1/2) HSS - UNF 1/2 x 20”
