The Best Locking Grease Coupler?

Testing couplers past 10,000 PSI
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[@Tools-Tested]

Lock N Lube is made in South Africa

[@Manuel3525m]

Lock and lube won’t last longer than the one he said was $16 and durability? I had the lock and lube when it went out got the one he said was $16 but I got it for $9.99 for two on eBay an so far it been great . An I put them to work daily or every two days. If u don’t want to pay $30 an change these work great I grease a wheel loader and a screen plant.

[@LockNLube]

Happy to see the positive results! Thanks for the big field comparison test, I don't know that anyone else has ever done one with ALL of the locking options on the market. 👍

[@Tools-Tested]

Yeah it tested well, even after being used for a year. No problem! I was constantly getting comments requesting a comparison video.

[@getrdid2000red]

😂😂😂 YOUR GETTING PAID BY LOCK & LUBE. THEY SUCK! AND THEIR WARRANTY SUCKS TOO!!! THEY LEAK FROM DAY ONE AND ARE WAY OVER PRICED JUNK!!

[@LockNLube]

@@getrdid2000red We don't pay for reviews. The LockNLube Grease Coupler has a lifetime warranty on the tool, and it's rebuildable. If you have issues with yours, give us a call, so we can help you out with a warranty replacement, or a refund.

[@boomerau]

After breaking zerks and fighting with recessed locations - king pins on tractor back hoes are the worst. I bought a few of these and most were too big for the recessed zerks in loader, bucket, and backhoe. I ended up with a Macnaught. After 3 years of use what do I know. I have to pull mine back to "arm" them before putting on a zerk. They do occasionally not bite/seal well when for weird angles. Under really high pressure they can be a pain to remove but not to bad. I have one on the battery grease gun and one on the hand grease gun. Between them over 100 tractor greases which is a lot of zerks. The work fine on the PTO.

[@petersipp5247]

Great testing and comparing them all! Thank you so much!

[@Tools-Tested]

Thanks! No problem!

[@dutchman243]

I had to go with Macnaught for my LS tractor loader. Locknlube was too big to get into the recessed fittings. When you are removing the Mcnaught don’t hold the coupler back. You simply pull it back to unlock it and then let it go. It will come right off.

[@Tools-Tested]

Thats understandable, hopefully his video will help others. I will have to try that with the Macnaught. Thanks!

[@donaldcoulter1297]

Thanks for the great review. Just straight information without a lot of Bull or fluff

[@Tools-Tested]

No problem, glad it was helpful!

[@outdoors-fun]

Not sure how you could honestly recommend the Lock N Lube. At 50$ its 3-4x the price of some of the other models you tested that worked fine. If the rebuild kit is the deal breaker, you can get a two pack of the Aorrzer for 20$. You could get 4 of those for 10$ less than one Lock N Lube.

[@naturebites5974]

Good video! I bought the Lock n Lube set, but it is too hard for me to compress the spring, so I am sending it back. New and unused. I am going to give the Lumax a try. The Performance Tool and the Thinkwork looks pretty good, too. Thank you for your very scientific approach!

[@Tools-Tested]

Thanks! Yeah I can see that, they all seemed to take a decent amount of force. No problem! I try and keep testing as consistent as possible, for a fair comparison.

[@M8NTIS]

You really messed up the application and removal of the Macnaught. Both times you are holding the release mechanism while trying to put it on, and take it off, that's not how it's done. The instructions are very simple, pull back the release and let it go to apply holding the nutted part, then grease. Pull back and release the mechanism then take off the nipple by again holding the nutted section.

[@buzzedalldrink9131]

I have a LuMax never a problem.

[@rawbacon]

Back in the day everyone was slinging plenty of grease, today nowhere near the amount of fittings as there once was.

[@Tools-Tested]

Yep, its the "maintenance free era"= built to fail

[@augiemattheiss]

Marketing: In order to compete we need to "innovate" into zero life time maintenance! Engineering: Easy! simply redefine life time!

[@jimmywells33]

Not in the heavy equipment/commercial realm.

[@harry8506]

I have been using the same mcaught for 4 years now with no issue, to release the coupling under pressure you pull back the release and push forward the coupling then it will pull back no problems. I bought it due to its size, their one hand grease guns are about the best on the market here in Australia

[@Tools-Tested]

Thanks for the info! Glad it’s worked well, seems quality built. I didn’t know they sold a grease gun.

[@patch33]

日本の山田も試して欲しい

[@douglasbattjes3991]

Great review, I have 2 of the ones you review, like the KY+ and the lock and lube, like both, but also like the extended length of the KY+ . I Notice,,, and only what I saw, you were pulling on the levers, or set black levers, I had the same issue, then I read and saw the demonstration they provide, and your only suppose to pull and release the 2 levers, push it on the zerk, and pull and release to take off, not hold it back, Now mine works like it should, and works much better, if you hold the levers it rearms the inside. The locknlube also works very well, 👍👍👍👍 Thanks for the video, well done , Oh grease several pieces of equipment, from excavators 6 track loaders, tractors, and attachments they work on, and the small ends are a must for us.

[@Tools-Tested]

Thanks! and thanks for the info I will have to try that. Yeah the locknlube has worked great for me.

[@VikingsFan27]

Lock n lube seems to have the best reviews, after watching your video, it is the one I ordered as I want quality and reliability over price. I am greesing a tractor and sidedump trailer on a weekly basis and wanted something that is made for more than just the casual user. Thank you for your great videos.

[@Tools-Tested]

Yeah it’s pricey but in this case I think you get what you pay for. I think you will be happy with it, it’s worked well for me. Thanks!

[@thedolphin5428]

No offense mate, but testing a grease gun coupling up to some 1000s of psi going nowhere is a daft test. They are never under such pressure in real life as the new grease replaces the old grease. Duh. If you need more than about 100psi, your nipple or galleyways are corroded, blocked, or your shaft is seized. Lol. Forcing 6,000-14,000 psi ANYWHERE is a joke. Smarter to do a strip and clean of the shaft/bearing.

[@randyc5650]

I have used my LocknLube XL for 2 years and it has been great. I have 2 trucks, a car and a medium and small tractor with several implements. It has reached everything with a fitting. I gave up using red grease because it was the main cause of blocked joints. It dried up and I had to use penetrating oil or take it apart to free it up. Green grease (greenish white) has not dried out in 5 years so far. I know this is not about grease.

[@Tools-Tested]

Thanks for sharing! Yeah the LL has worked well. It’s crazy the amount of different brands and types of grease, maybe at some point I can test them.

[@randycaulkins3644]

Totally disagree with your LockNLube choice, at least for our Craftsman and Cub Cadet mowers. Customer service response was quick but no new ideas or other things to try. The simpler the better when you only have 2 hands a need to pump the grease gun manually.

[@elliotkane4443]

I've got a bunch of Macnaught tools, mostly transfer pumps and that sort of thing - never knew they actually made those couplers here in Australia. I've had the Lock'n lube (Alemlube here in Straya') on my power grease gun for 2 years now, definitely prefer it, does make it hard to get to some machines with guards over the zirc sometimes, also bearings on fixed steer axles, uni joints and anywhere the length or the lever gets in the way, still keeping it on though so there's my vote. Its a bit too much resistance as well it can give you a bit of hand pain after awhile - Still better than wrestling to get the coupler off the fitting.

[@Tools-Tested]

Yep overall the Lock'n Lube has been great, with the exception of some small disadvantages like you mentioned. Macnaught looks to be the perfect coupler for those tight spaces.

[@tsl7881]

I don't think you mentioned the Holt is a Harbor Fright brand (don't know if they licensed the name from Cat or just found it abandoned). I looked at it about 5 years ago and bought the Lumax 1403 (they go for about $17, their long LX model is twice the price). It is attached to my Lumax1153 ( my M18 has no pressure)and rarely leaks, fits in those recessed loader holes if I carry a screwdriver to clean gunk around the zerk, but it is too short for PTO drive lines. The lever is nice ,but can get bumped loose if you are in a off position struggle (you or the tip) and make a big mess everywhere, like you still need that third hand. I I do use an adapter kit from OTC with a short hose and small tip to blindly reach into PTO shields and other areas, but again the lever comes loose easily at the adapter coupling.

[@Tools-Tested]

Thanks for the info on the Lumax! Yes the lovely PTO shaft lol, wish we had an alternative to them.

[@TheKajunkat]

I've had the lock and lube for about 3 years now. Has worked great so far. It does give me access troubles on pto shafts and some of the fittings on the loader arm. I might pick up the xl.

[@markostefanac]

I have MATO(germany) lock and lube head and works perfect. 35euro.😊

[@Tools-Tested]

Nice! looks high quality, but hard to find in US.

[@tonylander3512]

Rightio I'll look out for that ?

[@karenboles4542]

in old car suspensions and greasable cables, how high do those go? no where near 10,000 i would thnk

[@genestallons5926]

My choice (the ome i am most happy with) is the Lock-n-Lube. Great quality tool . Anything Chinese is junk.

[@Tools-Tested]

Yep, I have been using the Lock N Lube, it’s been good.

[@huntermadison6900]

I’ve bought 3 lock and Lubes, and rebuilt them a couple times. They always seemed to leak and were hard to use in tight applications. Since then I put the lock and lube on the shelf and have been using a lumax. It’s lever design was easier for me to use, similar vise grip leverage, I’ve never had it leak and the lever makes it easier to disengage off of high pressure zerks. I plan on trying the lock and lube again and see if I just got some duds. But for now Lumax gets my money.

[@Tools-Tested]

Thanks for the info, haven’t had an issue with the lock and lube yet but sounds like a matter of time. Good to hear the lumax is holding up.

[@austinbaylor2613]

Great review! As a mechanic for a trucking company I grease trucks daily sometime multiple trucks day using a pneumatic pump. Cheap tips last about half a truck before they are shit. Local store had the LuMax coupler and they last a few months but eventually wear out. Think after I finish my stash of LuMax couplers I’m buying Lock n Lube ones to try them out!

[@Tools-Tested]

Thanks! Yeah sadly with heavy use they all seam to wear, that’s one thing I do like about the LNL you can rebuild it.

[@IsambardKingdom]

Purchased the Macnaught initially it disappointed me - I also had difficulty in locking it on and removing it - but persisted and soon learnt that once you mastered how to use the lock knob (that black bit) it is very easy and positive to lock on and also release - think outside of the box - now I use it on my excavator and loader pins rather than the Lock n Lube.

[@Tools-Tested]

Yeah sounds like others have experienced the same thing, I can see how the low profile is handy for loader pins.

[@sweetpigfarm3645]

Thank you for this... I had the cheap Mr lube tools...the seal wore out fast. Looks like locknlube for me

[@Tools-Tested]

No problem! thanks for the info on the Mr Lube Tools.

[@mg8718]

I cant even finf a grease fitting on modern day cars. My Honda for example uses ball joints that are sealed. Theres no grease fitting.

[@Tools-Tested]

Sadly that seems to be the trend. My new tractor has sealed tie rods without grease fittings.....

[@Creelinvestments]

As of 7.1.2024, locknlube says they don't make a coupler to fit the Makita. Did you have to adapt any of the couplers to fit the Makita? Which model of the LocknLube did you use to fit Makita?

[@Tools-Tested]

Interesting I just have the normal LNL, I’m curious if makita changed the thread.

[@velocity800]

why does diameter even matter?? (rolleyes)

[@MM-rr1kp]

Thinkwork should win for price vs performance, small diameter, but you are biased to LnL and McNaught

[@joesummers9864]

Just bought a lock and lube getting a Milwaukee cordless delivered tomorrow looking forward to it

[@Tools-Tested]

Nice!

[@Manuel3525m]

The one u say $16 i got 2 for $9.99 on eBay durability? . I will say is great for the money used one for my Milwaukee grease gun and one for my hand grease gun grease daily a wheel loader and screen plant no issues

[@Kangaroojack1986]

The problem I have is the couplers wearing out and not locking on the fittings after about a month of daily use. Im gonna check out the rebuildable LockNLube next.

[@Tools-Tested]

Yep, thats one main reason I like LNL is because of the rebuild ability and they send an extra kit with each coupler so they are aware of actual heavy use.

[@Kangaroojack1986]

@@Tools-Tested You should do a long-term use follow up review if possible. I ordered a few LnL couplers for the shop, I will check back in after I have used them for a couple months. I'm just hoping they last more than a few weeks before needing to be rebuilt

[@bartdaw6681]

I have the Aorrzer and it seems to work ok. Nice complete review!

[@Tools-Tested]

Good to hear! Thanks!

[@dicas1988]

Subscribed brother. You need to be up there.

[@Tools-Tested]

Thanks for the SUB! hopefully someday.

[@dAtfRkLiFfGuY]

i wouldn’t recommend the saker, the lever is junk, the diameter is too big and after 2 months it started to leak out of every seam.

[@baboon50]

I have a performance tool and I’m not sure if it’s just because the state in is a rust belt so the Zirk fittings are not always the original size or what but I have not had a great experience with it probably less than good experience. Constantly having to fight to get the thing to lock it leaks, but like I said, I don’t know if that’s the Zirk fitting or the adapter.

[@Tools-Tested]

Yeah probably in those conditions the Lock N Lube might be the better option.

[@ikezaring1773]

Thank you, always wanted to know if the lock-n-lube was worth the upgrade price over the standard with all grease guns.

[@Tools-Tested]

No problem, yeah I think the rebuild ability makes it a good pick.

[@schridogg3822]

Did you get the lock and lubes for free or have you been paid to talk about them? Transparency is key and I’ve read a lot of negative reviews about them leaking from brand new with hardly any pressure.

[@mediocreman2]

Interesting. I can't say I ever remember seeing a product made in South Africa.

[@Tools-Tested]

Yep, only other thing I have bought made in Africa was some Gedore Red tools.

[@Resist_JWO_1984]

What do you mean you don't see? I see those products made in Africa almost every day, blacks & bananas🍌. One of those products is very violent and has very high crime rate statistics!!!

[@WhiteVaille]

holy shit, lol. as always, you're a hero, dude. I've been seeing lots of these over the past few months, and always been sort of curious which might be actually better than another, if any. and, I just got my first set of (manual) grease guns, so was wondering what I should put on them for ease of use. Glad to see some live testing and comparisons!

[@WhiteVaille]

It's honestly almost mind-numbing how many subtle variations there are on these.

[@WhiteVaille]

Well, I guess I ought to save up for a set of Locknlube couplers. Was honestly hoping something cheaper might put up a solid fight, and admittedly, they'll probably be fine under "nominal" circumstances. But it looks like name brand is the way to go here for the best experience and least frustration. Not to mention serviceability! Otherwise, I wouldn't have even thought of that being a feature for something so small and simple, but I'm always glad to see it as an option from the manufacturer.

[@Tools-Tested]

Yeah lol so many of them are just rebranded. The serviceability is a big deal for me, normal tips seems to wear out over time. Up front it's more but in the long run seeing it has the rebuild kit I think its a better value. Glad it helped

[@wheatking01]

I've never had great luck with lock'n lube. Work great at the start, but don't last long. I wish they'd put a stronger spring in it to keep it locked on better and grease from leaking by.

[@Tools-Tested]

Yeah I can understand the heavier spring, I haven't had issues with mine yet but im also not greasing every day.

[@kailaskadam-j7q]

How to order

[@paulkaufman4901]

I don't have any need to push over 10,000# of pressure so most of these cover my need for pressure easily. My two most important considerations are will it fit into a tight spot and how easily does it seat and unseat. I appreciate the trouble you went to in setting up the pressure test. It just doesn't warrant the attention over the other considerations for most people who will look at your review. All that being said, I'm pretty sure that your assessment that the LockNLube is a good choice is very true. That's what I'm going to use.

[@tonylander3512]

I just got a mcnaught a few days ago, not really happy but when it came to pulling off I waited a couple of seconds and it came off slightly easier, I'm thinking it's new and I'm getting used to it but not really happy 🤷‍♂️

[@Tools-Tested]

I can see that if pressure is on the line because of the design. The lock n lube would work better in that case.

[@lololine]

Maybe one of you guys out there can help me? I know nothing about farm tractors. I have a An 86 massey Ferguson tractor, it has a hydraulic leak. It is leaking from a component or box where there are 4 female couplers screwed to it. where hydraulic equipment gets connected. It is not leaking from the couplers but from above the component which looks like two small cylinders that has hex screws and can be unscrewed and opened? Trying to find out name to get rebuild kit?

[@Tools-Tested]

Normally called SCV (selective control valve). You should be able to get a rebuilt kit for it . But I can’t speak for a massy, I have only rebuilt John Deere.

[@lololine]

@@Tools-Tested awesome that get started, hard to order parts for something u don't know the name of!!!

[@Ingveyisnthome]

great work thanks for sharing !!!

[@Tools-Tested]

Thanks! No problem!

[@bigjeep2195]

Lock and lube made where? You skipped that info.

[@Tools-Tested]

South Africa

[@lololine]

This is a great video!

[@Tools-Tested]

Thanks!

[@christophersawtelle2558]

Going to give the Performance Tool one a try since the Lock N Lube is nothing but trouble. It will not lock onto a fitting without you having to manually slide the outer sleeve back down over the jaws.

[@Tools-Tested]

Interesting hopefully you have better luck with the performance tool. I haven't had any issue with the Lock N Lube but I'm only greasing my farm equipment.

[@christophersawtelle2558]

@@Tools-Tested That's all I am really doing also!

[@Pete.Ty1]

👍👍👍Thanks

[@Tools-Tested]

No problem!

[@willreed1411]

My locknlube leaks more grease than what goes in the fitting. Done it since day one

[@Tools-Tested]

Weird maybe you have a defective one? I haven't had any issue. I have been using mine for over a year now on various machines.

[@sptrader6316]

Be sure to use Teflon tape on the fitting. Should be no leaks.

[@thedolphin5428]

Why are these expensive things even necessary ???? I have an elCheapo Home Store $30 greasegun which has a standard "twist-to-lock" nipple fitting. Goes on fine, tightens fine, comes off fine, never leaks. It's most often sloppy operator carelessness, pumping at an angle, which buggers the little nossle seal and causes .

[@stovepipe9er]

The fittings on lawn mowers and vehicles take grease pretty easily. Pins and grease banks on heavy machinery often take more pressure and crappy grease gun ends leak grease everywhere.

[@thedolphin5428]

@@stovepipe9er Nonsense. I've used cheap and medium quality grease guns on all sorts of domestic and agricultural and automotive equipment up to 50hp tractors without any problems. Yes, heavy duty machinery can benefit from pneumatic grease guns, but they are helpful because of THE QUANTITY which needs to be injected. The actual back pressure at ANY GREASE nipple depends on the tightness/sloppiness of the internal gap to be filled, and/or the dirt/corrosion in the galleyways or nipple.

[@stovepipe9er]

@@thedolphin5428 read my post, I said pins and grease banks on heavy machinery, not automotive, lawn mowers and little farm/yard equipment.

[@stovepipe9er]

@@thedolphin5428 you’re calling nonsense based on experience with 50hp and less “ag” equipment…. Grease banks with lines a meter or two long certainly do take pressure to grease vs a fitting right on a bearing. Some pins and assemblies on larger machines are tight and create back pressure. After enough years of grease oozing out between the coupler and zerk the locking tip is a breathe of fresh air.

[@thedolphin5428]

@@stovepipe9er 1. You clearly don't know much about pressure then do you? 1" of gallery travel needs the same pressure as 50" of gallery travel, but more volume. 2. And ffs mate. If you want to argue about THAT LEVEL of industrial applications then noone would be buying these generic handyman fittings for 10 - $50. Even your quality professional mechanic would not buy this stuff for 365 days work per year. I just rung a mate in the aero industry and they pay hundreds for top quality grease neck attachments. 3. Ahem, there have been what you call locking tips for 50 years. The old manual twist tip is THE MOST RELIABLE. It helps prevent twisting on the nipple which is most idiot bozos' problem. Like you, 99% blame the tool.

[@TheAzimvs]

eBay 6 jaws the way to go. Don't worry about American made lol

[@dalewiley9208]

Lock and lube required rebuild after one year of very light usage. Tremendous waste of money for me.

[@Azeryen]

Been using a Lock N Lube for the last 5 years professionally on forklifts, had to rebuild it once because I melted the seal... Would absolutely recommend a Lock N Lube to anyone. Sometimes it is too large to get into a recessed hole, so I have additional greasing ends with grease fittings on the end to connect to the Lock N Lube.

[@Tools-Tested]

Nice to hear, I love mine. Good point on making a small adapter for those hard to get at zerks.

[@MJF40]

You didn’t say where Lock-N-Lube was made.

[@Tools-Tested]

Sorry, it’s made in South Africa

[@MJF40]

@@Tools-Tested no worries I saw it at the end of your video posted. I’m a big fan of lock-n-lube ! I have quite a few few things of theirs including grease gun adapters for other grease guns, their couplers right angle jobbies, etc. But I never knew where they were made even when you go to their website, which I did after I asked you, doesn’t specifically say in their “about us” Regardless, good company and good products ! Thanks for doing this video 🙂

[@محمدربيع-ض5ف]

كام السعر

[@odayalfuhaid6603]

Thank you for the video but it was rude comparing qualities by countries I hope you maintain more professionalism manner in your upcoming videos

[@jimmywells33]

Stop crying. First world nations make the best products with the best materials and don't use slave/child labor to make it happen.

[@k80jr]

Most people want to know where the product is made

[@timnemeth6555]

I don't support China in any way.

[@billy-bo-dilly]

He's not really comparing "quality" by country. He is letting the consumer decide if they want to support a communist country that uses child and prison labor. I buy nothing made in Red China.