Here’s a list of some leading national suppliers of adjustable dies in the United Kingdom:

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Leading Suppliers of Adjustable Dies in the UK

1. Schmidt + Cie GmbH

   • Website: schmidt-cie.com
   • Known for: A wide range of adjustable dies and other machining tools.

2. Heller Machine Tools Ltd

   • Website: heller.biz
   • Known for: Precision machining solutions including adjustable dies.

3. Gusil (UK) Ltd

   • Website: gusil.co.uk
   • Known for: Manufacturing high-quality adjustable dies tailored for various applications.

4. Wright Tool Company

   • Website: wrighttool.com
   • Known for: Tool and die manufacturing including adjustable dies.

5. Ceres Media Ltd

   • Website: ceresmedia.co.uk
   • Known for: Offering adjustable dies for specific industrial applications.

6. Baker Perkins Ltd

   • Website: bakerperkins.com
   • Known for: Engineering company providing various forms of dies including adjustable options.

7. Die Supplies Ltd

   • Website: diesupplies.co.uk
   • Known for: Specializing in die-cutting tools, including adjustable dies.

8. Murray & Roberts (UK) Ltd

   • Website: murrayandroberts.com
   • Known for: Engineering and industrial solutions including die manufacturing.

9. Davis & Jenkins Ltd

   • Website: davisjenkins.co.uk
   • Known for: Providing custom and standard adjustable dies.

10. Unex Manufacturing Ltd

    • Website: unexmanufacturing.co.uk
    • Known for: Expertise in die design and production with adjustable options.

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Please note that while these companies are involved in the production and supply of adjustable dies, it's essential to contact them directly for the most accurate information regarding their product offerings and services. If you need more specific information about each company or their products, feel free to ask!