Get a perfect fit—measure precisely, every time
A stainless-steel vernier caliper for accurate inside, outside and depth measurements.
Happy Customers
Average Rating
Satisfaction Rate
Loved Across Britain
Free UK Delivery
Next-day dispatch from our UK warehouse
2-Year UK Warranty
Full manufacturer warranty with UK support
30-Day Free Returns
No questions asked, prepaid return label
Fine-Adjust Thumb Wheel
Dial in measurements smoothly without overshooting, even on small parts
Ruziza Metal
A durable 150mm stainless-steel vernier caliper for accurate inside, outside and depth measurements with smooth fine adjustment.
How to Use
- Clean the jaws: Wipe the measuring faces to remove dust or swarf.
- Close to zero: Gently close the jaws and confirm the vernier aligns at 0. If needed, re-check for debris.
- Outside measurement: Place the part between the main jaws, use the thumb wheel to fine-adjust, then lightly tighten the lock screw.
- Inside measurement: Use the upper jaws inside a hole or tube and open until contact is just firm, then lock.
- Depth measurement: Rest the base on the surface and extend the depth rod into the recess to the bottom.
- Read the vernier: Read the main scale first, then add the vernier alignment value for the final measurement.
- Care: Wipe clean after use and apply a light machine oil to the beam before storage.
What Our Customers Say
Bought it for jewellery making and it’s spot on for measuring wire, jump rings and tiny spacers. The thumb wheel makes it easy to creep up on the size without slipping.
Arrived quickly and feels properly solid—no wobble in the slide. I’ve used it to check drill bits and bolt shanks and the etched scale is clear under workshop lights.
As someone who teaches basic metrology, I appreciate the smooth action and the lock screw for repeat readings. The vernier lines are crisp, which reduces reading error.
Great value and accurate on the jobs I’ve tried (bike headset spacers and bearings). Only minor gripe: the edges are a touch sharp out of the box—quick deburr and it’s perfect.
I had a cheaper caliper that would stick; this one glides smoothly and the fine adjustment is a game changer. Measuring inside diameters is much more consistent.
Used it for 3D printing—checking wall thickness and nozzle sizes. Reads reliably, but I did need 10 minutes to refresh how to read a vernier (not the tool’s fault).
Our Guarantee
30-Day Returns
No questions asked return policy for complete peace of mind.
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Free UK Delivery
Fast tracked shipping to your door at no extra cost.
Ruziza Metal was created for people who care about accuracy—whether you’re fettling a bike, machining parts in a small workshop, or tackling a weekend DIY job. We source robust, metal-bodied tools designed for repeatable results, then back them with straightforward UK support.
Our product selection is intentionally focused: practical tools that earn their space on the bench. We look for clear, readable scales, smooth adjustment, and materials that stand up to real use—because precision shouldn’t feel precious.
We dispatch quickly from the UK and keep returns simple, so you can buy with confidence. If you ever need help choosing the right tool or checking a measurement method, our team is on hand with friendly, practical advice.
Ruziza Metal is for makers, fixers and professionals alike—where good workmanship starts with a reliable measurement.
Frequently Asked Questions
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