The world's most in-depth and scientific reviews of outdoor gear

How to Choose a Multi-Tool

The entire selection of tested multi-tools  lined up for comparison and testing.
By Jediah Porter ⋅ Review Editor
Wednesday April 17, 2019

Mashing multiple tools together into a single package is not a new idea. Craftsmen and odd-jobbers throughout history have streamlined their lives by combining often-used tools in various fashions. However, it was in 1984 that a guy named Tim Leatherman essentially invented the category of commercially-made, general-purpose, pocket tools with his original "Pocket Survival Tool." This first model was a pair of pliers that closed up like a balisong knife. This type of closure served to make the pliers more compact while at the same time protecting the owner's pants pocket from the abrasion of plier points and teeth.

Into the handles of the folding pliers, Leatherman added knife blades and screwdrivers and other useful tools. Designs have evolved and become more streamlined, but the bulk of multi-tools trace their lineage to the original 1984 Pocket Survival Tool. In testimony to Leatherman's original vision, several award winners in our comprehensive Multi-Tool Review are manufactured by the company he started, and that still carries his last name. Other companies have largely come up to speed and offer useful tools, each with its unique attributes. Leatherman inc still dominates multi-tool production, design, and branding. In some ways, the term "Leatherman" has become synonymous with "multi-tool."

Improvised automobile repair requires the right tool. Hopefully you have dedicated tools  but if you don't  a multi-tool is a worthy back-up.
Improvised automobile repair requires the right tool. Hopefully you have dedicated tools, but if you don't, a multi-tool is a worthy back-up.

Types of Multi-Tools


Our testing team of experts lumps these do-it-all tools into three distinct categories.

Keychain-Style Tools


These are significantly downsized to fit unnoticed on a set of keys. Unnoticed, that is, until the user needs one of the features included. When faced with one of many daily tasks, the user will have a ready tool just as handy as his or her keys. Being smaller tools, these are best fitted for smaller tasks that occur on a daily level.

Some of the "keychain" sized multi-tools we tested. On the left  Leatherman Squirt PS4. On the right  Top Pick Gerber Dime.
Some of the "keychain" sized multi-tools we tested. On the left, Leatherman Squirt PS4. On the right, Top Pick Gerber Dime.

General-Purpose, Full-Size Tools


This is the bulk of the category. Most multi-tools on the market fall under this umbrella. Tools are differentiated by construction quality, cost, features, and carry method. These tools can handle a wider variety of and larger tasks than the keychain models, as their larger build allows them to stand up to more intense use.

A general purpose multi-tool comes with several tools to handle many situations and repairs and with enough size to stand up to moderate tasks.
A general purpose multi-tool comes with several tools to handle many situations and repairs and with enough size to stand up to moderate tasks.

Specialized Purpose Multi-Tools (While Maintaining Some General Applications)


This is a bit confusing to explain. Essentially, some tools offer the typical features (pliers, blades, drivers) and then add in tools that will appeal to a specific user group. Offerings in this category are targeted variously to gun-owners, explosive technicians, electricians, and others. Some tools are just a little burlier and handier than the general purpose tools. For example, the SOG PowerAssist falls into this category. It has no specialized tools but is clearly targeted to the user working in construction or another manual labor field. Other such tools we have reviewed are the Top Pick Leatherman Crunch and the SOG Baton Q4. There are the ruggedized general purpose tools like we have reviewed and various "trade specific" tools that we do not assess.

The screw-driving specialized Top Pick SOG Baton and all of its component parts.
The screw-driving specialized Top Pick SOG Baton and all of its component parts.

How to Choose One


To narrow down the field of options for your selection, allow us to walk through some considerations with you. First of all, if you are someone for whom a trade-specific tool is appropriate, we will assume that you have a network from which to draw important information. Our advice below will be best for those that are not using a multi-tool in a professional-level application.

How "handy" would you characterize yourself? Do you run to the repair shop for every blown light bulb on your car? Or do you face a broken clothes dryer and dig around a little bit to see if the damage is clear? If you fall into the latter category, you'll first consider a full-size multi-tool. Any of the tools in this category will tackle many auto and household improvised repairs. Larger tasks, no matter how handy you are, will require dedicated tools. Similarly, extended use with any tool is better done with the proper, single-purpose version of that tool. Multi-tools are inherently limited by their "jack of all trades" status. However, for the quick repairs and "exploratory dismantling" of a broken or poorly-functioning piece of equipment, a multi-tool is just the ticket.

The Leatherman Surge is heavy duty and user-serviceable for extended electrical work.
The Leatherman Surge is heavy duty and user-serviceable for extended electrical work.

If you are comfortable and glad to seek outside assistance for life's inevitable mechanical failures, we still recommend considering a multi-tool. A tiny tool on your keychain like our Top Pick Gerber Dime will find almost daily use for even the most clumsy handy-person. If you'll choose a full-size tool, consider how often and where you will carry it. Our lead test author would argue that everyone who can carry it on their person will find daily use for a full-size multi-tool. However, for many reasons, this is not desirable to all. Many will choose to leave theirs in a car or backpack or even at home.

The molded plastic belt sheath is different from that of all the other tools we tested. It is secure  compact  and easy to access.
The molded plastic belt sheath is different from that of all the other tools we tested. It is secure, compact, and easy to access.

Portability and Carry Options


If you will carry a full-size multitool every day, consider how you will carry it. Many folks in the "trades" can carry a tool on their belt. This is by far the most efficient, accessible, clean, and comfortable way to transport one. However, contemporary fashion and social convention frowns on this style of carry in most circles. In this case, you will carry the tool in your pants pocket or purse. In the purse, specialized carry features are a moot point. Perhaps having a lanyard ring to attach it in such a way that it can be easily retrieved is worthwhile. In the pants pocket, however, consider a pocket-clipped carry. A tool floating around low in a pocket flops while walking. It also gets plugged with spare change and can displace other pocket contents while pulling it out. Nothing negates the self-sufficiency of carrying a multi-tool like losing a $10 bill every time you pull it out. A pocket clip, again, keeps the tool up off the bottom of the pocket. It keeps it in a secure and convenient position where it swings and bounces far less.

For pocket carry, whether clipped or loose, consider the external "roughness" of the tool you choose. A smooth external profile of the closed multi-tool will chafe your pockets less. A full-size multi-tool with rough exterior can readily wear a hole in your pants pocket over just a few weeks. Smooth external profiles are easier on your pants and on your working hands. The above are the big questions. How often will you use it? How will you carry it?

Tailor Your Tool to Your Expected Uses


Everything else is of personal consequence. Certain features, in extended use, prove more valuable. A large blade will be used in food preparation far more than you can imagine. Even in the kitchen of many of our testers, having one in the pocket has proven more handy than a kitchen knife for quickly cutting open a bag of pasta or slicing off a chunk of cheese.

The full-size  tool-steel screwdriver bit of an SOG brand multi tool.
The full-size, tool-steel screwdriver bit of an SOG brand multi tool.

Scissors, same consideration. You'll use these more than you think. Screwdrivers come on every tool, but it's ok if they're hidden further away. Our testing team used pliers, blade, and scissors each perhaps ten times more than screwdrivers. Those with certain consumptive habits -you know who you are- will use a bottle opener more than any other tool. Thankfully most multitools have one.

With screwdrivers, consider the pros and cons of built-in drivers vs. accessory bit holders. Built in drivers never get lost, but the advantages stop there. For maximum versatility and durability, a driver for interchangeable bits is an excellent addition to your multi-tool. Interchangeable bits are almost infinitely customizable and can be replaced very readily if one is damaged. There are two primary bit driver interfaces available in multi-tools. First, a few tools on the market come ready to receive standardized and widely available 1/4" drive bits. Next, certain Leatherman brand tools come with their proprietary "flattened" bits and bit drivers. The Leatherman system is more compact, but the bits and driver-bit connection are less strong and the options are more limited.

This image shows the proprietary Leatherman bit driver. It works  but makes some compromises over the standard 1/4" format.
This image shows the proprietary Leatherman bit driver. It works, but makes some compromises over the standard 1/4" format.

Again, if your vocation or trade requires specialized tools, we choose to assume that you are in tune with what those are and will seek out a tool that serves you from day-to-day and through the workday, to the home shop, to your vacation.

You'll be amazed at how many seemingly "destroyed" pieces of equipment can be repaired with an ever-present multi-tool.
You'll be amazed at how many seemingly "destroyed" pieces of equipment can be repaired with an ever-present multi-tool.

The OutdoorGearLab Editors' Dream Multi-Tool


With decades of experience using multi-tools and years now of reviewing the best on the market, we have yet to see the perfect multi-tool. If we could design the ideal model, for both everyday carry and car/expedition repair kit use, it would look like this:
  • External dimensions and form-factor of the Leatherman Wingman. This is slightly more compact than the bulk of "full-size" tools, with a pocket clip and externally accessed scissors and "one-handed" blade. To fit it all in we'd take a little more bulk, up to the size of the Leatherman Wave+, if necessary.
  • Straight-edged, high-quality steel blade, like that on the Leatherman Charge TTI.
-The locking pliers of the Leatherman Crunch. Must include wire cutters.
  • Ratcheting 1/4" bit driver like that on the SOG Baton Q4.
  • Can and bottle opener.
  • Scissors like on the Victorinox SwissTool SpiritX.
  • File for nails, wood, and metal

Consider extraneous features when you shop for your multi-tool. A v-shaped cord cutter is a good example of this. Except in super rare circumstances, the dedicated v-shaped cord cutter of something like the SOG PowerAssist is totally redundant with the standard blade. Unless you are opening many string-wrapped packages (and who does that any more?), the knife blade works just as well. Similarly, the so-called "package hook" of old-fashioned Swiss Army style multi tools is now out of date and extraneous. The many tools that have both bit drivers and built-in screwdriver bits seem a little silly.

Lastly, you will always be considering the purchase price. Part of that includes a consideration of durability and replacement cost. If you are organized and rarely lose small personal belongings, you can justify a more expensive tool and count on it realizing its value over a long time. If you are prone to losing things, you are less likely to realize the value of a more durable tool. Losing a tool negates any warranty or long-term function advantages of a more expensive product. Multi-tools and pocket knives are especially prone to misplacement.


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