Trevor's Wrench

A worthy adjustable wrench

Instant adjustment, confident engagement, and the satisfying feel of a tool designed to become the one you reach for first.

Limited first run planned · Join for launch timing

Eight Trevor's Wrench prototypes showing the design evolving from an early green model to the latest black working design — Five years of iterationPrototype evolution

Latest full-product view of Trevor's Wrench — Latest working designFull product

Close view of the coordinated pin mechanism in Trevor's Wrench — Mechanism detail

Vertical full-length view of Trevor's Wrench — Profile view

5 years

In development

Prototype iterations

8–17 mm

Target range

Independent

Self-funded project

How it works

A different way to fit the fastener.

Instead of dialing a traditional jaw, the mechanism coordinates multiple pins around the bolt for a fast, tactile adjustment.

Technical wireframe showing the Trevor's Wrench pin mechanism and handle — Coordinated pin system · Technical view

Closes around the fastener

A coordinated set of pins moves inward together, adapting the opening to the fastener instead of relying on a traditional moving jaw.

Snaps into place

Spring-loaded action makes placement quick and tactile, helping the wrench settle onto a bolt with one intuitive motion.

Refined for production

The latest design balances strength, compact packaging, repeatable manufacturing, and the details that make a tool feel right in use.

The current design

Real hardware, refined through iteration.

The latest version brings the pin mechanism, spring-loaded action, and compact handle into one working design.

Latest Trevor's Wrench adjustable ratcheting wrench in a full-product view — Latest working design01

Close view of the Trevor's Wrench coordinated pin mechanism — Mechanism detail02

The build story

Five years of finding the weak point.

This began with a small frustration: switching sockets, missing the right size, and fighting with adjustable wrenches that never feel quite right.

Full-length vertical view of Trevor's Wrench — Latest working design · Full-length view

I've machined, assembled, broken, and rebuilt this mechanism in public. Every failure exposed the next thing that needed to become stronger, smaller, or simpler.

The goal is not to replace every tool in the box. It is to make one tool so quick and satisfying that you instinctively reach for it first. faber foundry is where I share that process and the products that come from it.

Read the full product story

Follow the build

See how the mechanism got here.

The full development story lives in the open, from failed parts and prototype testing to the latest production decisions.

Latest build video

This Invention Changes Everything!

The newest chapter in the build, including the decisions pushing Trevor's Wrench toward production.

Development story

I Invented an Adjustable Ratcheting Wrench

The original development story: the mechanism, the failed parts, and the iterations that made it work.

In the shop

Follow @faberfoundry on Instagram

Follow the daily build

Early access

Be there for the first run.

Get the production updates that matter: supplier progress, launch timing, and the first opportunity to secure Trevor's Wrench.

Email first. Optional feedback after.

FAQ

A few practical details.

The current status, what joining means, and how the first production run may work.

01What stage is Trevor's Wrench in right now?

I’m validating the latest design and preparing a production-ready version. My goal is to begin with a limited run, learn from those first tools, and expand from there if the results are positive.

02What happens when I join the waitlist?

I’ll use your email to send occasional production updates and let you know when Trevor's Wrench is available. You can unsubscribe at any time.

03Will joining the waitlist guarantee a preorder slot?

Not yet. The waitlist helps me understand demand and communicate launch timing. Because I plan to start with a smaller production run, joining is the best way to hear about any preorder or first-run opportunity.

04How do I share product feedback?

After joining, you can optionally tell me where you would use the tool and what would make it indispensable. That feedback directly shapes the production version.