WARBURTON PRECISION BRASSWORKS

Providing high precision components, tooling, and design support to brass artisans, and manufacturing services for all other industries

Custom Solutions

Precision Machining

Meticulously crafted precision parts that elevate your instruments to new heights. Ultra-smooth finishes and precision fits reduce the amount of time spent on finishing work!

Bespoke Creations

Uniquely tailored components, custom designed to your exact specifications. With these larger projects, I work directly with you to design and modify your ideas into the finished product.

6-way horn change rotor. The blue epoxy design was added by the client
In progress custom whole-step change rotor for trumpet

Oversize Rotors - new life for old instruments

One of the biggest issues with repairing old instruments is old, leaky valves. They can be re-plated, but this is less than ideal, especially since any flaws in the original will be amplified by the plating process. What then could be better than brand new valves?

By reverse engineering and machining new rotors that are a few thousandths oversize, they can be lapped in to create a fit as good or better than the factory.

Below you can see a set of C.F. Schmidt rotors I made to replace the originals, which had already been re-plated.

Valves for an antique C.F. Schmidt

Custom Tooling

Ball-out dies, brazing fixtures, and more - all you need to add an extra level of precision and consistency to your instruments!

Horn Rotor knuckle ball-out die, Mild Steel
Trombone bow and knuckle dies, O1 Tool steel

Get in Touch

For information, quotes, and consultations, please contact me using this form, or email directly to johan@warburtonprecision.com.

If you’re interested in getting parts made, more information means a faster quote! If possible, please provide a technical drawing, napkin sketch, or picture with dimensions, along with material and quantity.