Best Magnetic Nut Driver Sets
Two different tools get sold under the same search. A nut driver is a hand tool, a hex socket on a screwdriver handle. A nut setter is a bit with a hex shank that goes in a drill or impact driver. Both are magnetic, both fit nuts, and buying the wrong one wastes the purchase.
The second thing worth understanding is hollow versus solid shaft. A solid shaft bottoms out on a bolt that protrudes past its nut. A hollow shaft lets the bolt pass up inside the driver, which is the difference between reaching a fastener and not. Each pick below says which it is.
Quick answer
For hand work, the Klein 631M magnetic set is the right default and the Wera 395 HO/7 is the upgrade with hollow shafts. For driving nuts with a drill or impact driver you want nut setters instead, where the Wiha 70486 covers SAE and the Klein 32940 is the hollow impact version for protruding bolts.
Why trust ToolBuyerHub
- Every set here is a named brand sold on Amazon US, checked against the live listing
- Specifications come from manufacturer and listing data, not from guesswork
- Owner-feedback themes are summarized as feedback, never as our own hands-on testing
- No invented star ratings; the Research Score criteria are visible on each pick
- Hand nut drivers and power nut setters are separated, since they are different tools for different jobs
- Hollow and solid shaft is stated for each pick, because it decides whether the tool reaches the nut
Research updated October 2026.
What Matters Most When Buying Nut Drivers
Decide first whether you are turning nuts by hand or with a power tool. A hand nut driver gives feel and control, which matters on sheet metal, electrical panels and anything you can over-tighten. A nut setter is a bit for a drill or impact driver, which is what you want for decking screws with hex heads, roofing fasteners and self-drillers, where there are many and speed matters. Second, hollow or solid shaft: a hollow shaft is open up the middle so a bolt protruding past its nut can pass inside, while a solid shaft bottoms out on it and stops turning. Third, magnetism, which is what holds the nut or hex screw in place so you can start it one handed, and matters most overhead and in awkward positions. Then check whether you need SAE, metric or both, and finally shaft length, since a longer shaft reaches into recesses but flexes more.
| Model | Best for | Key specs | Research Score |
|---|---|---|---|
| Klein Tools 631M Magnetic Nut Driver Set, 7 Piece | Hand driving nuts and hex screws | Hand nut driver, Magnetic | 92/100 |
| Wera 395 HO/7 SM Nutdriver Set, 7 Pieces | Nuts on long protruding bolts | Hand nut driver, Hollow | 94/100 |
| Bondhus BNX7 48445 Hollow Shaft Nut Driver Set, 7 Piece | Hollow shafts on a budget | Hand nut driver, Hollow | 89/100 |
| Wiha 70486 Color Coded Magnetic Nut Setter Set, 6 in SAE, 6 Piece | Driving nuts with a drill | Nut setter bit, 6 in | 90/100 |
| Klein Tools 32926S 2 in Magnetic Power Nut Setters, SAE, 6 Piece | Tight spaces with a power driver | Nut setter bit, 2 in | 87/100 |
| Klein Tools 32940 Magnetic Hollow Impact Nut Driver Set, SAE, 6 Piece | Impact drivers and protruding bolts | Impact nut driver bit, Hollow | 93/100 |
| Wiha 70487 Color Coded Magnetic Nut Setter Set, 6 in Metric, 6 Piece | Metric hex head fasteners | Nut setter bit, 6 in | 88/100 |
Klein Tools 631M Magnetic Nut Driver Set, 7 Piece
Best OverallPros
- Magnetic tips hold the nut or hex screw so you can start fasteners one handed
- Klein is the US electrical trade standard, so sizes and replacements are easy to find
- Cushion grip handles give enough purchase to actually torque a fastener by hand
Cons
- Solid shafts, so they bottom out on a bolt that protrudes past its nut
- Hand driving is slow if you have dozens of fasteners to run
The default hand set, and magnetism is the feature that justifies it over a socket and ratchet. Starting a small nut or a hex head sheet metal screw usually means holding the fastener with one hand, and in a panel or overhead you do not have that hand free. A magnetic tip holds it for you. Solid shafts are the limitation here, which is exactly what the hollow shaft sets below address.
Wera 395 HO/7 SM Nutdriver Set, 7 Pieces
Best PremiumPros
- Hollow shafts let a protruding bolt pass up inside, so the driver reaches nuts a solid shaft cannot
- Kraftform handle shape delivers noticeably more torque than a round grip of the same size
- Build and finish are at the level where the tool is pleasant to use all day
Cons
- Costs considerably more than a basic magnetic set
- Hollow shafts are not magnetic in the same way, so fastener retention is weaker
The upgrade that solves a specific recurring frustration. Threaded rod, carriage bolts and anything cut long leaves bolt sticking out past the nut, and a solid shaft driver simply stops against it. A hollow shaft swallows the bolt and keeps turning. The Kraftform handle is the other reason to buy Wera, since handle shape determines how much torque you can comfortably apply.
Bondhus BNX7 48445 Hollow Shaft Nut Driver Set, 7 Piece
Best Value Hollow ShaftPros
- Hollow shafts at a fraction of the premium set's price
- Bondhus is a long-established hand tool brand rather than a generic seller
- Seven sizes covers the common SAE range for general work
Cons
- Handles are less refined than Wera's, so long sessions are less comfortable
- Hollow shaft means weaker fastener retention than a magnetic solid tip
The sensible way to get hollow shafts without paying premium prices. The capability is what matters: either the driver passes over a protruding bolt or it does not, and that is a yes or no rather than a question of quality. What you give up against Wera is handle comfort over an extended session. For occasional work on threaded rod and long bolts, this is the right purchase.
Wiha 70486 Color Coded Magnetic Nut Setter Set, 6 in SAE, 6 Piece
Best for DrillsPros
- Colour coding by size means grabbing the right one without squinting at stamped numbers
- Six inch length reaches into recesses and past obstructions a short setter cannot
- Magnetic, so hex head screws stay on the setter while you position them
Cons
- These are bits, not hand drivers, so they need a drill or driver to be useful
- Long setters flex and wobble more than short ones at speed
The right tool when there are a lot of fasteners. Hex head sheet metal screws, self drillers and roofing fasteners come in quantity, and hand driving them is slow enough that people reach for a drill anyway. Colour coding is a genuinely useful detail: size markings on steel bits are nearly invisible once the bits are dirty, and in a set of six that costs real time.
Klein Tools 32926S 2 in Magnetic Power Nut Setters, SAE, 6 Piece
Best Short SettersPros
- Two inch length fits where a six inch setter cannot physically swing
- Short setters run truer at speed, with far less wobble than long ones
- Magnetic retention for one handed starting
Cons
- Too short to reach recessed or obstructed fasteners
- Puts the drill chuck close to the work, which risks marking the surface
The companion to the long setters rather than an alternative. Access decides which you reach for: inside a panel, in a stud bay or against an obstruction, a six inch setter cannot be angled into position and a two inch one can. Short setters also run truer, so they wobble less at drill speed. Keep both lengths, since between them they cover almost every situation.
Klein Tools 32940 Magnetic Hollow Impact Nut Driver Set, SAE, 6 Piece
Best for Impact DriversPros
- Combines hollow shaft with impact rating, which few sets do
- Impact rated, so it survives the rotational hammering that snaps ordinary bits
- Hollow shaft passes over protruding bolts, so it reaches nuts on threaded rod
Cons
- Hollow impact bits are more expensive than solid ones
- Only useful with a power driver, so a hand set is still needed for feel
The most capable power option here, because it solves two problems at once. Ordinary bits snap in an impact driver, which is why impact rating exists, and solid shafts stop against protruding bolts. This is rated for impact and hollow, so it keeps turning on threaded rod and carriage bolts. If you fit strut, unistrut or anything on long threaded fasteners, this is the set.
Wiha 70487 Color Coded Magnetic Nut Setter Set, 6 in Metric, 6 Piece
Best MetricPros
- Metric sizes, which SAE sets cannot substitute for without rounding the fastener
- Same colour coding and six inch reach as the SAE version
- Useful for imported machinery, bicycles, appliances and flat pack hardware
Cons
- Metric only, so SAE fasteners need the other set
- Long setters flex at speed, as with any six inch bit
Included because metric is a separate requirement rather than a preference. Using a close SAE size on a metric nut is one of the common ways hex heads get rounded, and the sizes are close enough to tempt you. Imported machinery, bicycles, appliances and most flat pack hardware are all metric. If your work touches any of those, you need both standards rather than one.
Nut driver or nut setter
A nut driver is a hand tool: a hex socket on the end of a screwdriver handle. You use it where feel matters, such as electrical panel screws, sheet metal, electronics enclosures and anything you can strip or over-tighten. A nut setter is a bit with a hex shank for a drill or impact driver, used where there are many fasteners and speed matters, such as hex head decking screws, roofing fasteners and self drillers. They are not alternatives: most people who work with hex head fasteners regularly end up owning both, because hand driving a hundred screws is slow and power driving a delicate one strips it.
Hollow versus solid shaft
A solid shaft nut driver has a closed socket, so when the bolt protrudes past its nut, the shaft bottoms out on the bolt and will not seat on the nut. A hollow shaft is open up the middle, letting the bolt pass inside so the socket seats properly. This matters constantly on threaded rod, carriage bolts, strut channel and anything cut to length. The trade is that a hollow shaft cannot hold a nut magnetically in the same way as a solid magnetic tip, so retention is weaker. Many people keep a magnetic solid set for general work and a hollow set for long bolts.
Why magnetism matters more than it sounds
Starting a small nut or a hex head screw normally takes two hands, one to hold the fastener and one to turn the driver. In a panel, overhead, inside a cabinet or up a ladder, you do not have the second hand. A magnetic tip holds the fastener for you, which is the difference between a job being awkward and being straightforward. Magnetism weakens over time and can be partly restored by passing the tip over a strong magnet, and it is lost if the tool is heated, so keep magnetic drivers away from grinders and torches.
Lengths, standards and keeping fasteners intact
Short setters of around two inches run truer at drill speed and fit where nothing longer can be angled in. Long setters of around six inches reach into recesses and past obstructions but flex and wobble more. Owning both lengths covers most access problems. On standards, SAE and metric hex sizes are close enough to tempt substitution and that is a common cause of rounded fasteners, so buy the standard your work actually uses rather than making do. Finally, with a power driver, let the clutch or a light trigger do the work: an impact driver will happily shear a small machine screw before you notice.
FAQs
What is the difference between a nut driver and a nut setter?
A nut driver is a hand tool, a hex socket on a screwdriver handle, used where feel and control matter. A nut setter is a bit with a hex shank that fits a drill or impact driver, used where there are many fasteners and speed matters. They are different tools, and most people who work with hex head fasteners own both.
What is a hollow shaft nut driver for?
Reaching a nut when the bolt protrudes past it. A solid shaft driver bottoms out on the protruding bolt and cannot seat on the nut, while a hollow shaft lets the bolt pass up inside. It matters constantly with threaded rod, carriage bolts, strut channel and any bolt cut longer than its nut.
Are magnetic nut drivers worth it?
Yes, because starting a nut or hex screw normally takes two hands and in a panel, overhead or up a ladder you only have one. A magnetic tip holds the fastener while you position the driver. The magnetism weakens over time and is destroyed by heat, so keep magnetic tools away from grinders and torches.
Can I use nut setters in an impact driver?
Only if they are impact rated. Ordinary bits are hardened and relatively brittle, and the rotational hammering of an impact driver snaps them at the shank. Impact rated setters, such as the Klein 32940 hollow set, are built to flex and absorb that shock loading instead.
What size nut drivers do I need?
For SAE general work, 3/16 through 1/2 inch covers most hex head sheet metal screws, electrical panel screws and small nuts, which is what a seven piece set typically spans. If you work on imported machinery, bicycles or appliances, you need a metric set as well, since substituting a close SAE size is a common way to round a hex head.
Why does my nut driver slip off the fastener?
Usually because the size is slightly too large, often an SAE driver on a metric nut or vice versa, or because the socket corners are worn. Both round the hex head progressively. Check the size with a fastener you know, and retire drivers whose internal corners look rounded, since they damage every fastener they touch.
What length nut setter should I buy?
Both, if you use them regularly. Around two inches runs truer at drill speed and fits where nothing longer can be angled into place. Around six inches reaches into recesses and past obstructions but flexes more at speed. Access rather than preference usually decides which one comes out of the case.
Can a nut driver replace a socket and ratchet?
For small fasteners and light torque, often yes, and the magnetic tip makes it faster to start them. For anything that needs real torque, a socket and ratchet or a wrench is the right tool, because a screwdriver handle cannot apply much twist and you will strip the fastener or your wrist before it moves.
Do nut drivers come in metric?
Yes, and they are a separate purchase from SAE. Metric hex sizes are close to SAE ones, close enough that substituting feels possible and then rounds the fastener. Imported machinery, bicycles, appliances and most flat pack hardware use metric, so if your work touches those, buy both standards.
Our verdict
Buy the Klein 631M magnetic set for hand work, and add the Wera 395 HO/7 or the cheaper Bondhus BNX7 the first time a protruding bolt stops a solid shaft driver seating. For power driving, nut setters are the correct tool rather than nut drivers: the Wiha 70486 for SAE with reach, the Klein 32926S short setters for tight access, and the Klein 32940 if you use an impact driver on long threaded fasteners.