Wiha 70486 | 6 Piece Color Coded Magnetic Nut Setter Set

The Verdict

If you’ve ever fumbled a 10mm nut into an engine bay, you already understand why magnetic nut setters exist. The Wiha 70486 takes that concept and adds a visual organization system that actually works in practice. But at roughly double the price of generic alternatives, does the color-coding justify the premium? After digging through 200 ratings and the spec sheet, here’s the real story.

What You Actually Get

The box contains six nut setters: 5.5mm, 6mm, 7mm, 8mm, 10mm, and 13mm. Each has a 1/4-inch hex shank that fits standard impact drivers and drill chucks. The magnetic tip holds fasteners firmly — Wiha rates the retention strength high enough for overhead work, and user feedback confirms this holds up.

The color-coding isn’t just painted on. Each setter has a colored band around the shank, and the included storage case has matching color slots. As one reviewer put it, “I can grab the red one for 10mm without reading anything. It’s saved me time on every job since I bought these.”

Build Quality and Real-World Performance

These are machined from chrome-vanadium steel with precision-ground broaching. That matters more than you’d think. Cheap nut setters often have sloppy tolerances that round off fastener heads on stubborn bolts. The Wiha broaching engages the full hex surface, distributing torque evenly. Multiple buyers noted they’ve used these daily for months with zero wear on the drive ends.

The magnetic retention deserves specific praise. Unlike some magnetic setters where the magnet is so strong it’s hard to release the fastener, Wiha struck a balance. Nuts stay put during placement but release cleanly once seated. One reviewer noted, “I drove 200 screws with these in a ceiling install and dropped exactly zero fasteners.”

Where It Falls Short

The size gaps are the biggest frustration. There’s no 9mm, 11mm, or 12mm — and 12mm is common on automotive and appliance work. You’ll likely need a second set to cover the full range, which eats into the value proposition.

The 2.5-inch length also limits reach. In recessed holes or deep-set fasteners, you’ll need an extension. That’s not a dealbreaker, but it’s worth knowing before you buy.

Finally, the price. Wiha charges a premium for the brand name and German engineering. If you’re a weekend DIYer who needs one size for one job, a $10 generic set gets the job done. These make sense for professionals or serious hobbyists who use them daily.

Who Should Buy This

• Professional tradespeople who need reliable, long-lasting tools and value time savings from instant size identification
• Home mechanics who work on multiple vehicles with mixed metric fasteners
• Anyone who’s dropped one too many nuts into a tight engine bay

Skip it if you only need one size, work primarily with SAE fasteners, or your budget won’t stretch for a premium set.

FAQ

Q: Do these work with impact drivers? A: Yes, the 1/4-inch hex shanks are impact-rated. Several reviewers use them daily with impact drivers without issue.

Q: Will the magnets lose strength over time? A: Not practically. Wiha uses rare-earth magnets that maintain retention through hundreds of cycles. One reviewer reported using theirs for two years with no noticeable drop-off.

Q: Are these really worth more than generic sets? A: If you’re a professional or detail-oriented DIYer, yes. The precision broaching and color-coding genuinely save time. For occasional use, a cheaper set is fine.

The Verdict

Buy it if: You want a precision tool that’ll last years, you work with metric fasteners regularly, and you value the time savings from instant size identification.

Skip it if: You need SAE sizes, work with 12mm or larger fasteners regularly, or your budget is tight.

Rating: 4.2/5 — Excellent build quality and smart design, held back by size gaps and premium pricing. For the right user, this is a buy-once, cry-once investment that pays for itself in saved time and stripped-nut frustration.

Where to Buy

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.