Leatherman Free P4 vs Wave Plus: Magnetic One-Hand Opening vs Classic Outside-Access Workhorse

Leatherman built its reputation on the Wave — and then on the Wave Plus. For two decades, that one tool was the default answer when somebody asked which full-size multitool to actually buy. Then in 2019 the Free P4 showed up, and Leatherman quietly admitted that the original formula could be improved. Same footprint, same eyepiece, same handle scales. Completely different action, completely different geometry, noticeably different price. If you carry a Leatherman daily, or you are about to start, the Free P4 versus Wave Plus question is the only multitool decision that actually matters at the full-size tier. This is the head-to-head, with no marketing spin and no padding — just a long look at what each tool actually does in the pocket, in the hand, and at the end of a long workday.

Two Generations, Same Footprint

Both tools collapse to roughly four inches closed and open to about six and a half. Both weigh in the neighborhood of half a pound — the Wave Plus tips the scale at 8.5 ounces, the Free P4 lands at 8.6. You will not feel that one-tenth of an ounce in the pocket, on the belt, or in the hand. Side by side, the closed silhouettes are nearly identical: same stainless-steel handle scales, same dual-blade external profile, same belt-clip footprint. What changed is everything you cannot see from the outside.

The Wave Plus is the matured form of a 1998 design. The Free P4 is a clean-sheet redesign that Leatherman launched in 2019 after years of customer feedback about one-handed opening, accidental pocket deployment, and tool lock geometry. Keeping the same footprint was a deliberate move — Leatherman did not want to scare off two decades of Wave loyalists, and the dimensions were already proven to work for belt carry. But the internals are not iterative. Almost every pivot, lock, and tool has been rebuilt from the bushing up.

How They Open: Magnets vs Outside-Access

This is the single biggest difference and the one that decides the buying choice for most people. The Wave Plus uses outside-access blades — the two knives, the saw, and the file all sit on the outside of the handle so you can deploy them with the tool closed. That sounds great until you realize you still need both hands to actually open the pliers, because the handles fold inward the traditional Leatherman way. Outside-access is genuinely useful for a quick knife grab, but it does not solve the bigger problem of pliers deployment with one hand full of work.

The Free P4 added magnets. Every tool, every blade, every pivot has a magnetic detent. You can one-hand open the pliers with a sharp flick of the wrist — the handles pop apart, snap into position, and lock with a tactile click that feels closer to a high-end folding knife than a multitool. The bit driver, the scissors, the file, the saw, all of it opens one-handed. The magnets also hold tools shut against the spring of your jeans pocket so nothing flops open accidentally when you sit down or climb a ladder.

For someone who uses a multitool five times a day on a job site, in a server rack, or under the hood of a vehicle, this single change is worth the price difference alone. The Wave Plus has been called the best multitool ever made for two decades. The Free P4 quietly takes that title and adds an opposable thumb.

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Pliers, Cutters, and the Working End

Both tools use needle-nose pliers with a regular-jaw section behind. Both have replaceable wire cutters — a feature most multitool buyers ignore until they ruin the cutters on stainless wire and discover that Leatherman will sell them a replacement insert for about ten dollars. The Free P4 redesigned the cutter geometry: the hard-wire notch is more aggressive, and the soft-wire section bites cleaner on stranded copper. The Wave Plus cutters have been the benchmark for years; the Free’s are noticeably sharper out of the box and they hold an edge longer in real-world cutting tests on Romex and braided steel cable.

The pliers themselves feel similar in terms of leverage and jaw alignment. The Free P4 has slightly more relief at the pivot, which makes the open-close action smoother but also means a touch less mechanical advantage on stubborn nuts. For 95% of plier tasks — stripping wire, gripping a stripped bolt head, pulling a fish hook — you will not notice. For breaking loose a corroded nut on a battery terminal, the Wave Plus has marginally more bite. Both are excellent pliers by any objective standard.

Knife Blades, Locks, and Scissors

Both multitools give you two blades: a plain edge and a serrated edge. Both use 420HC stainless steel — Leatherman’s house steel, decent hardness, easy to sharpen, not a premium powdered metal like the CPM-S30V you would find on a dedicated Benchmade or Spyderco. Neither blade is going to compete with a Para 3 in pure cutting performance, but neither is supposed to. The multitool blade is for opening boxes, slicing tape, trimming wire insulation, and the occasional apple at lunch — not for hard-use field work.

The Wave Plus blades open with a thumb stud and lock with the classic Leatherman liner lock. The Free P4 uses a thumb hole, Spyderco-style, and a redesigned lock with positive engagement and a much easier release. The Free P4 blade lock is genuinely good — flick it open with one hand, close it with one hand, never fight it. The Wave Plus lock works, but it requires deliberate two-handed action to release and has a reputation for stiffness in the first few hundred cycles.

Scissors on the Free P4 are spring-loaded and easy to deploy. The Wave Plus has scissors too, but they live behind the bit driver and feel like a packaging compromise. If you cut zip ties, fishing line, or thread tags off new clothes more than once a week, the Free P4 scissors will be the first tool you reach for.

Bit Drivers, Screwdrivers, and the File Question

Both tools ship with the Leatherman bit driver and one extra bit holder. Both accept the same flat 1/4-inch bits from the Leatherman bit kit, sold separately and worth every penny if you actually use the driver. The Free P4 adds a dedicated medium screwdriver — a fixed flathead — that the Wave Plus does not include. For anyone tightening battery compartments, fuse box screws, or appliance panels, the dedicated screwdriver is a quiet upgrade that means not having to dig out the bit kit for a thirty-second job.

The file is where the Wave Plus actually pulls ahead for a specific kind of user. Its file is longer, has both a metal and a wood side, and lives in an outside-access slot you can flip open with the tool closed. The Free P4 file is shorter, lives inside the handle, and only has a single cut profile. If you actually file metal — deburring bolts on a build site, smoothing a sharp edge on a sheet metal cut, knocking down a burr on a freshly cut bolt — the Wave Plus file is the better tool. If you do not, you will not miss it.

Pocket Carry, Belt Sheath, and Real-World Drop Tests

Both tools ship with a leather and nylon sheath, and both have a deep-carry pocket clip option — sold separately or bundled depending on the retailer. The Free P4 clip is reversible and removable without tools, which is a small touch that means a lot if you decide six months in that you want to switch from belt carry to clipped pocket carry. The Wave Plus pocket clip is sold as an accessory and requires removing handle screws to swap from one side to the other.

The Free P4 has a magnetic detent that holds the tool firmly closed against fabric. The Wave Plus relies on simple friction at the pivot points. After a long day of trail riding or walking a job site, the Wave Plus has been known to creep open in the pocket — usually the saw blade, which is the lightest sprung tool. The Free P4 stays put. Small detail, large quality-of-life improvement.

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The Free P4 Costs More — Here Is What That Buys You

At MSRP the Free P4 lands roughly thirty to fifty dollars above the Wave Plus. Street pricing fluctuates and you can occasionally find the Wave Plus on sale for under ninety dollars while the Free P4 holds closer to a hundred and forty. That price gap buys you one-hand opening on every tool, a noticeably better blade lock, sharper cutters out of the box, a dedicated medium screwdriver, magnetic detents that prevent accidental opening, and a more refined feel in the hand that becomes obvious five minutes into ownership.

The Wave Plus gives you a longer and better file, a slightly more proven track record — twenty-five years of fleet service in trades — and a meaningfully lower entry price. Both come with Leatherman’s twenty-five-year warranty, which is one of the best in the industry and worth factoring into the long-term math.

Which One to Buy in 2026

If you are carrying a multitool every day, doing real work with it, and the magnets and one-hand opening would actually get used — Free P4. The price difference disappears the first week you stop fighting the tool to open it with greasy or gloved hands. The redesigned blade lock alone is worth the bump if you reach for the knife more than once a day.

If you mostly carry the multitool just-in-case, you fix things at the kitchen table or out in the garage on weekends, and you want the proven cheaper workhorse — Wave Plus. There is nothing wrong with this answer. The Wave Plus is still one of the best multitools ever made, and a brand-new one in 2026 is just as capable as the one your uncle has been carrying since 2002.

If you are an electrician, plumber, or HVAC tech who files metal regularly, the Wave Plus file might tip you back to the older tool. Otherwise, the Free P4 is the better daily driver in every way that matters in 2026. It is the rare upgrade where the new model genuinely deserves the new price.

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Sources

• Leatherman official site — manufacturer spec sheets and warranty terms.
• Wikipedia: Leatherman — company history and product timeline.
• GearJunkie — long-term gear reviews and field testing.