Go to homepage
Go to homepage
Skip image gallery
Circular threading die with central thread and side slit for adjusting cutting diameter.
UNF (Unified fine)

Round Die BS 1127; 1950 (o/d 1.5/16) HSS - UNF 9/16 x 18

Item no. 83035

€21.90

2 weeks delivery time
Application
VÖLKEL Round Die BS 1127; 1950 (o/d 1.5/16) HSS – UNF 9/16 x 18 | Precision External Thread Cutting Tool

VÖLKEL Round Die BS 1127; 1950 (o/d 1.5/16) HSS – UNF 9/16 x 18

The VÖLKEL Round Die UNF 9/16 x 18 made of high-speed steel (HSS) is designed for precision external thread cutting in workshop and assembly operations. It ensures a clean thread start, reliable chip formation, and dimensional accuracy – ideal for maintenance, repair, and small batch production.

Application & Advantages
  • For general use
  • For machinable, non-abrasive materials up to 800 N/mm²
  • Unalloyed and low-alloy steels

Advantages:

  • Accurate UNF external thread according to ANSI B 1.1
  • HSS design ensures long tool life and cutting stability
  • Optimized chip breaking using forward/backward cutting motion
  • Fits die holders with o/d 1.5/16
  • Technical Information (PDF)

Step-by-Step Instructions
  1. Preparation: Machine workpiece to core diameter, add a 30–45° chamfer, and clamp securely.
  2. Alignment: Place the die (o/d 1.5/16) flat and centered in the die holder, cutting side facing forward.
  3. Cutting: Apply cutting oil; rotate approximately 1 turn forward and 1/4 turn backward to break the chip, maintaining a perpendicular position.
  4. Finishing: Cut to the desired thread length, reverse the die, and remove chips.
  5. Check: Verify with a matching UNF nut or gauge; clean the thread surface.

Technical Data
  • Thread Type: Unified Fine Thread UNF (ANSI B 1.1)
  • Standard: BS 1127; 1950
  • Material: HSS
  • Nominal Size: UNF 9/16 x 18
  • Overall Length (L1): 1/2 die height
  • Outside Diameter: 1.5/16 o/d
  • Article Number: 83035

Contents
  • 1× Round Die HSS – UNF 9/16 x 18 (o/d 1.5/16)

Frequently Asked Questions (FAQ)

Which materials can I use this die for?
Suitable for machinable, non-abrasive materials up to 800 N/mm², such as unalloyed and low-alloy steels.

Which standards apply?
Thread according to ANSI B 1.1 (UNF); die according to BS 1127; 1950.

What die holder do I need?
Use a die holder with an outer diameter of 1.5/16 (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.

Additional information
Type of thread Unified Fine Thread
Standard BS 1127; 1950
Form splitted version (Form A)
Material HSS
Tolerance 2A
Size UNF 9/16 x 18
Overall length (L1) 7/16 Width
Outer diameter 1.5/16
EAN 4022835830351
Item number 83035
Thread standard ANSI B1.1
Rec. Bolt diameter 14.14 mm
VÖLKEL Round Die BS 1127; 1950 (o/d 1.5/16) HSS – UNF 9/16 x 18 | Precision External Thread Cutting Tool

VÖLKEL Round Die BS 1127; 1950 (o/d 1.5/16) HSS – UNF 9/16 x 18

The VÖLKEL Round Die UNF 9/16 x 18 made of high-speed steel (HSS) is designed for precision external thread cutting in workshop and assembly operations. It ensures a clean thread start, reliable chip formation, and dimensional accuracy – ideal for maintenance, repair, and small batch production.

Application & Advantages
  • For general use
  • For machinable, non-abrasive materials up to 800 N/mm²
  • Unalloyed and low-alloy steels

Advantages:

  • Accurate UNF external thread according to ANSI B 1.1
  • HSS design ensures long tool life and cutting stability
  • Optimized chip breaking using forward/backward cutting motion
  • Fits die holders with o/d 1.5/16
  • Technical Information (PDF)

Step-by-Step Instructions
  1. Preparation: Machine workpiece to core diameter, add a 30–45° chamfer, and clamp securely.
  2. Alignment: Place the die (o/d 1.5/16) flat and centered in the die holder, cutting side facing forward.
  3. Cutting: Apply cutting oil; rotate approximately 1 turn forward and 1/4 turn backward to break the chip, maintaining a perpendicular position.
  4. Finishing: Cut to the desired thread length, reverse the die, and remove chips.
  5. Check: Verify with a matching UNF nut or gauge; clean the thread surface.

Technical Data
  • Thread Type: Unified Fine Thread UNF (ANSI B 1.1)
  • Standard: BS 1127; 1950
  • Material: HSS
  • Nominal Size: UNF 9/16 x 18
  • Overall Length (L1): 1/2 die height
  • Outside Diameter: 1.5/16 o/d
  • Article Number: 83035

Contents
  • 1× Round Die HSS – UNF 9/16 x 18 (o/d 1.5/16)

Frequently Asked Questions (FAQ)

Which materials can I use this die for?
Suitable for machinable, non-abrasive materials up to 800 N/mm², such as unalloyed and low-alloy steels.

Which standards apply?
Thread according to ANSI B 1.1 (UNF); die according to BS 1127; 1950.

What die holder do I need?
Use a die holder with an outer diameter of 1.5/16 (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.

Recommended products

All products
Die visible through a larger die.
Application consulting
Always the perfect product for your application situation
Request consulting
This website uses cookies to ensure the best experience possible. More information...