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Gerber Crucial Black - Butterfly Opening Multi-Tool
Gerber Crucial Black - Butterfly Opening Multi-Tool

Crucial Black Multi-Tool

Butterfly Opening Multi-Tool

Item: # 31-001518

This light, everyday carry multi-tool gets an unexpected upgrade with professional-grade tools that are reliably tough. Made of stainless steel and available in multiple colors, this tool has precise needle nose pliers and 8 other components secured in a convenient butterfly style.


QUESTIONS? Contact Gerber


    • Overall Length: 5.5"
    • Closed Length: 3.6”
    • Weight: 5.0 oz
    • Half Fine / Half Serrated Blade
    • Strap Cutter
    • Philips Screwdriver
    • Flat Head Screwdriver
    • V-Cut Wire Cutters
    • Stainless Steel – Black
  • Warranty

Meet the tough but light Crucial. With professional-grade components of precise needle nose pliers along with eight other carefully selected features, this everyday carry essential multi-tool belongs to the ever-diverse, ever-popular series of Gerber multi-tools.


The Crucial steps right up to respond to the surprise hurdles life springs so routinely. It offers the partially serrated blade and the Phillips and flat drivers, all of which are liner locking for safe application, to tackle the business end of daily snags. Use the partially serrated blade to make short work of rope cutting or package opening, and tighten down loose screws around the house, the office, or out on a work site with the Phillips or flat head screwdrivers.


In addition to the knife and screwdrivers, the Crucial contains a nicely long pair of needle nose pliers, V-cut wire cutters, a carabiner clip, and an ingenious pocket clip, making this tool the shrewdest of daily carries. The handles of the tool are ergonomically curved for a solid grip and increased torque. Beautifully incorporating its precise assortment of tools within the unobtrusive, 3.5-inch frame, the slim, lean Crucial lets you face trouble without fear.


Rating Snapshot











Overall Rating

  • 4
  • |4 out of 5 stars
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  • 5 5
  • |JAN 1, 2019
  • |BY: , Recovery Mechanic ADF

My Dad bought me a Gerber Crucial before I went on a Cadet camp. It was a combo pack and came with the multi-tool and a torch. The torch lasted 2 cadet camps and broke, the Crucial still lives in my pocket to this day. I've had it for around 4-5 years and use it nearly every day. There is nothing wrong with it, save for a few scratches and such. I plan on passing it down to my son or daughter in the future.

  • 3 5
  • |MAY 14, 2018
  • |BY: , Truck Driver

perfect except for 2 things

phillips head is so flat, it's worthless

no bottle opener

people are complaining that it doesn't hold an edge well. the blade is fairly soft, but that also makes it a ton easier to sharpen.

this is a small EDC tool people, not a flippin rescue tool. quit complaining about things like tanto blades and oxygen wrenches.

  • 5 5
  • |APR 8, 2018
  • |BY: , Deployed Army Warrant Officer

Very good multitool. On all four of my deployments I have been issues a Gerber multitool. Those all came with a cover. This one does not. I have since put those away and use this one exclusively. It is the right size for what i need it for. I have been using it for about two months now and liked it so much I have purchased for more: I gave one to each of my three NCOs and am keeping a back up one. I do wish the pliers were spring loaded, but that may have added to the bulk.

  • 5 5
  • |APR 13, 2017
  • |BY: , Photographer

I love the Crucial. Its the perfect size for EDC. I love the belt clip. I have pwned other multi-tools in the past and hated how fat and bulky they were. I also hated carrying them on my belt which is why I never had them with me. The crucial is perfect. The belt clip makes it really easy to carry and it's not much fatter than a medium sized pocket knife. The knife and strap cutter deploy easily with one hand and the other tools are easy to get to also. It's perfect.

  • 5 5
  • |JAN 1, 2016
  • |BY: , Retired Military

Found a box of these at local Home Depot. Purchased 4 of them for Christmas Gifts for my son and his friends last year..(All Border Patrol Agents) Have been consistently asked where I got these from. This item VERY POPULAR with these hard working group of Agents. Thanks Gerber!

  • 5 5
  • |DEC 22, 2015
  • |BY: , Transportation Officer

The tool is of great quality. It came in very handy during a transport one day. One of the individuals being transported complained of chest pains and collapsed out of his seat. The strap cutter was used to cut off his outer garments so the AED could be applied. The simplicity of use and the quality of the product. I believe helped save that persons life.

  • 5 5
  • |SEP 29, 2015
  • |BY: , Your Title

Great tool. I was looking for a small tool that could open electrical boxes at work without resulting to a tool box. This tool fits the bill. It also will do many chores around the house and shop. It's become my go to tool after replacing larger more bulky tools that require pouches. It locks up tight and the blade is easy open. The clip holds the tool securly. The strap cutter can even be used to open beer bottles.

  • 5 5
  • |JUN 17, 2015
  • |BY: , Perfect

Good tool guys. I EDC it daily. Love the black version, so light you don't even notice it.

  • 3 5
  • |MAR 21, 2015
  • |BY: , Some good, some bad

I was given one as a gift, and really was liking the heavy blade--quick blade lock every time, great for opening heavy boxes, cutting cord and rope, etc.. I had opened the pliers only a couple of times, but weeks later, when I tried to open them and use them, the pliers started to open and then jammed and were locked closed -- wouldn't budge, like a piece of metal had moved in and jammed the pivot joint. I sent them in, and in a few weeks, a new pair arrived. Faster turn-around than I expected. I opened the package, and found the plier joint is loose and the jaws wobble. But worse than that is the knife blade and the strap cutter blade. They don't lock open very reliably. I have to open them hard then they will lock most of the time. But not when I expect them to open and lock -- they will fold in on my hand. Not like the first Crucial tool I had. No cuts. I don't use the tool now, Need to send it in and see if the third time is the charm.

  • 5 5
  • |JAN 28, 2015
  • |BY: , GREAT EDC

Great tool. Use it everyday will not go back to a simple knife.

  • 5 5
  • |JAN 5, 2015
  • |BY: , Great EDC!!

For the past 6 months I have been buying knives to use as my EDC. After I stumbled upon this awesome tool I will never go back to a simpl knife. As an EMT the belt cutter And half serrated blade works like a dream. I recommend to anyone looking for a relatively cheap and VERY durable EDC

  • 5 5
  • |DEC 7, 2014
  • |BY: , hunter/hiker/mtb

Great's got everything you need the knife is razor sharp so is the belt cutter. It's compact and awesome to use. Best multi tool ever.

  • 5 5
  • |DEC 1, 2014
  • |BY: , Home Improvement

Just got one after a customer did not return my previous multi tool I had. I have nothing bad to say about it. I like the strap cutter the Knife is 5 star. comfort grip. I use it everyday at work. I will not lend this one out it's a keeper.

  • 5 5
  • |AUG 23, 2014
  • |BY: , user

I have used mine for about a year. The locking blade is rock solid. The narrow/thin pliers have allowed me to work in tight spaces on my motorcycle.
Suggestion.....Make an "XL" ,larger/longer version. Same features, just bigger. A spring loaded pliers would be great.

  • 4 5
  • |MAY 13, 2014
  • |BY: , One of a kind

This is the greatest! The two greatest things about this tool is the pocket clip, and the tool lock! No more smashed fingers from folding in tools and pocket clip is handy and keeps it out of the way. The only downfall I have noticed is the blade didn't keep its edge and I've only had it for 5 months... And I don't like the blunt tip on the knife either. Overall I'll always have a pocket clip tool instead of a single knife from now on!

  • 4 5
  • |FEB 10, 2014
  • |BY: , Worker

This was the first Gerber tool I ever bought. Fell in love instantly. I've since bought other tools, but I I leave this in my glove box for any emergencies. Just wish the pliers were spring-loaded.

  • 5 5
  • |JAN 4, 2014
  • |BY: , Love this tool

I just picked this up in a a combo pack wight the Iris Flashlight (Costco). I am loving this tool I replaced my belt pouch multi tool and my everyday carry knife with this. Less weight to carry and all the same function. Great that you can thumb open the line cutter and the blade with one hand. Gerber Rocks!!!!

  • 2 5
  • |DEC 8, 2013
  • |BY: , Your Title

Good multi tool, difficult to open, screwdriver liner locks often fail to lock, strap cutter should only require one hand to operate.

  • 3 5
  • |OCT 17, 2013
  • |BY: , Good Tool, Bad Pocket Clip

I have used this tool for over a year. Mine is not black, but its the same tool as shown. I love the tool, but the belt clip is a weak shame. It really brings down the value of the knife. The screws loosen, and then strip when you try to tighten them up. I ended up taking the clip off and using a pouch that I bought. Still use it everyday, and other than the clip I love it. I would recommend this tool, but save yourself the frustration and use a pouch in the first place.

  • 4 5
  • |OCT 12, 2013
  • |BY: , Almost a great EDC

I had the crucial fast which I used to love. I put the Phillips screwdriver to a hard task and snapped the head off. Gerber replaced quickly with no problems. I was very happy about that. I now carry a bull rush for work. That thing so far has been a tank. No issues so far. It is tough. It is also heavy so I would never carry it in my pocket. (Downside) gerber if you read on the next version of the crucial make it more like a big version of the dime. I love the scissors and tweezers. Please use a tougher steel, a real tanto point, and add tweezers and scissors. I could live without the strap cutter for some scissors. Keep is under 6 oz and you will have a tow EDC tool.

  • 5 5
  • |SEP 29, 2013
  • |BY: , Everyday. Everywhere.

I have had this tool for nearly 2 years now, and still to this day it work beautifully. I use it everywhere, everyday literally! I work in retail right now and using anything else is very unsatisfying.. its small, light and compact.. not having this on me at all time really shapes my mood for the day. I recommend all day!

  • 5 5
  • |AUG 23, 2013
  • |BY: , THE everyday tool

I received mine with the Evo as a package deal and I love it. Have had no problems with craftsmanship, knife cuts well, strap cutter is beast, and is easier to manage than the larger suspension for example. I'd recommend it to a friend for sure.

  • 1 5
  • |MAY 29, 2013
  • |BY: , Legend in my own mind

I have a shiny chrome color or whatever eatherman and want a black M.T. to be a bit more incognito in the bush. I was considering the Crucial over another Gerber m.t. that Walmart has because the Crucial has a pocket clip and the Walmart one does not. Now, after seeing Tech Coordinators review, I think Ill just find a black Leatherman or SOG.

  • 2 5
  • |APR 14, 2013
  • |BY: , Your Title

My biggest issue is with the belt clip. Torx screws get loose and clip falls off. Great multi tool but needs to be better made.

  • 3 5
  • |FEB 20, 2013
  • |BY: , CHAOS_Tactical

i like this idea,and not only because its ninja stealthy, but it almost combines two of my everyday carry items: the Gerber paraframe and a leatherman skeletool.although a little expensive when price matched to a charge tti, it is still great. first i would titanium the core piece(s) use a paraframe clip or toss on a nite eyes carribeaner because the current clip sucks and honestly the size is almost key ringable

  • 1 5
  • |JAN 7, 2013
  • |BY: , Tech Coordinator

(Weak belt clip)
Let me start by saying I've always been a huge fan of Gerber knives. The knife is a great size and everything on it is just what a man needs for his daily routine. But.... The pliers are wobbly but they are sharp. My biggest issue is with the belt clip. I have had to have this knife replaced twice do to the fact it falls off. My previous gerber knife I had for seven plus years. I always clipped it to the inside of my pants pocket. I never had an issue with that belt clip on that knife. So I know it's not being misused. It's just a puny little clip. fail...

  • 4 5
  • |NOV 8, 2012
  • |BY: , fisherman

The sleekest design i've ever seen! Iuse strap cutters as 'line cutters and that could come in handy (without hurting a tooth!). Every angler needs one of these in his tackle box...

A bottle opener could come in handy, but not necessary... NEVER DRINK AND FISH...

  • 5 5
  • |OCT 9, 2012
  • |BY: , Knife User

Great tool. Rugged. The pliers is tough and the wire cutters are sharp and solid (a real test of precision, not found on all other multi tools).

  • 5 5
  • |OCT 2, 2012
  • |BY: , Tool Crib Attendant

Just imagine what McGuyver could've done with this little jewel; I absolutely love mine, and use it every day.

  • 5 5
  • |SEP 20, 2012
  • |BY: , Marine machinery

Gerber does it again.
Another Gerber tool that I can't be without.

  • 4 5
  • |SEP 2, 2012
  • |BY: , Your Title

Great for work and EDC the strap cutter works like a charm for cutting pallet strapping, The knife is sharp and the blunt tip keeps the HR department happy, pliers are strong and solid, this would be the perfect tool if it incorporated a bottle opener!

  • 5 5
  • |JUN 9, 2012
  • |BY: , Great Britain

I love the look of this, when is it coming to the UK ??!

  • 5 5
  • |MAY 6, 2012
  • |BY: , EDC

great tool for edc. the knife was sharp out of the box, the tools are all frame lock, the pliers are strong and the wire cuter works like a char. if i were ever caught in an emergency i would want this toll by my side. overall great tool!

  • 4 5
  • |MAR 9, 2012
  • |BY: , Dad

It would be great if you could incorporate a P38 also!

  • 4 5
  • |MAR 9, 2012
  • |BY: , SSG, USA

Best looking Gerber so far. Hopefully I win the giveaway. If not, I'm going to buy it, you always need a Gerber in the military.

  • 5 5
  • |FEB 22, 2012
  • |BY: , master

i pity the fool who ain't got a strap cutter

  • 4 5
  • |FEB 15, 2012
  • |BY: , Fire Fighter/Mine Rescuer

Great little tool earthing you need in a small, compact package. Would be nice if a O2 key could be incorporated.