Every workshop has its heroes — the tools you reach for when precision matters. Today, we’re talking about two of them: the Fowler Swiss Ultra Cal V1 Digital Caliper and the Fanttik E2 Ultra Electronic Screwdriver. Together, they’re the Batman and Robin of precision work — one measures down to a fraction of a hair, and the other drives screws so fast it might be late for a meeting.
Fowler Swiss Ultra Cal V1 Digital Caliper
Let’s start with the Fowler. This caliper isn’t just another measuring tool — it’s precision engineering wrapped in stainless steel.
It features a 150 mm range, 0.01 mm resolution, and ±20 μm accuracy — thinner than a human hair. The 3.5 mm heavy-duty frame gives it a satisfying heft that feels great in your hand. And with an IP67 rating, it’s dustproof, water-resistant, and sneeze-proof (because yes, that matters in a shop).
Why It Stands Out
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Dual measurement modes: Absolute and incremental.
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Quick conversion: Instantly switch between inches and millimeters.
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Bluetooth connectivity: Send measurements directly to your phone or spreadsheet with the Sylvac app — no more scribbling numbers on scrap paper.
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Lifetime warranty: Fowler stands behind their tools, which makes investing in precision a lot less scary.
That Bluetooth feature is a game changer. The caliper pairs seamlessly with your phone, and every time you take a measurement, it beams the data straight into your app. It’s like your caliper and your phone are gossiping behind your back:
“Hey, that bore’s 1.234 millimeters.”
Real-World Test
To see how it performs, I modeled a small cylinder with a bore in Bambu Lab Studio and printed it out to test accuracy. The model was designed to be 50.8 mm in diameter and 25.4 mm for the bore.
After measuring with the Fowler, the results came in at 50.88 mm and 25.43 mm — just a hair off, literally. That’s pro-level accuracy for 3D printing tolerances.
The Verdict
Pros:
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Ridiculously accurate
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Rugged and shop-ready
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Bluetooth data logging saves time
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Backed by Fowler’s lifetime warranty
Cons:
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Premium price tag — might be more than a casual DIYer wants to spend
But for anyone serious about their craft, the Fowler Swiss Ultra Cal V1 earns its spot as a must-have tool for the modern maker.
Fanttik E2 Ultra Electronic Screwdriver
Now for Robin — the Fanttik E2 Ultra. This thing doesn’t build decks, but it does assemble electronics, models, and prototypes in serious style.
It’s small, sleek, and smartly designed with up to 0.6 N·m torque — not drill power, but perfect for electronics and precision assembly. With 270 RPMs and an 800 mAh rechargeable battery, it delivers smooth, consistent power for longer than previous models (2.3x more, to be exact).
What’s in the Box
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50 magnetic bits for every screw type you’ll encounter
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Pop-up storage tray that’s ridiculously satisfying to open
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ESD-safe tweezers and pry bar for those delicate electronics projects
Why It Belongs on Your Bench
The Fanttik E2 Ultra makes assembly fast and fun. It’s the tool you grab when you’re building a 3D printer upgrade, repairing a circuit board, or putting together your latest prototype. It’s not about brute strength — it’s about finesse and control.
The Perfect Duo for Makers
These two tools complement each other perfectly:
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The Fowler makes sure your parts are in spec.
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The Fanttik makes sure they’re assembled flawlessly.
It’s like having a perfectionist friend and a hype man in your shop.
One says, “That’s exactly 1.34 millimeters,” and the other says, “Cool, let’s screw it together.”
Final Thoughts
If you’re serious about making, these are two tools worth adding to your setup.
The Fowler Swiss Ultra Cal V1 ensures accuracy on every print and part.
The Fanttik E2 Ultra keeps your builds tight, clean, and frustration-free.
Together, they help you take your projects from pretty good to pro-level.
Because tools aren’t just about measuring or tightening screws — they build confidence as you take on bigger, bolder projects.