Kube 3.0 Grinder

Love this grinder, easy to grip and very simple and quick to clean.

Received the Krush 3.0 with a deep scratch that appeared to be a customer return sent. Complained and was offered a small discount, which I accepted. So not off to a good start.

Sometime outside the warranty period, the anti-friction o-ring disintegrated and broke, despite only using the grinder occasionally and lightly

Contacted Vapefiend (who had previously recommended the Krush 3 on their youtube channel) but said that there nothing that could be done. I also contacted the company in USA but got no response, so presumably no replacement rings are available.

I've spent the best part of 1 and a half grand on vapes and accessories at Vapefiend but this experience, bearing in mind the cost of the grinder, leaves a bad taste. I will be less likely to use Vapefiend in the future.

nb. the review by 'Matt B' on 22/08/2025 completely mirrors my experience

Loved this grinder, but the anti friction o ring lasted only a year before disintegrating, resulting in bits of plastic breaking off. Now when used it grinds away the finish due to metal on metal contact. Apparently there aren’t any replacements available so will need to find an alternative or a new grinder after about 18 months of use. Previous brands (e.g. space case, Santa Cruz etc.) have lasted 5-10 years no problem. Would expect a pricey grinder like this to last much longer.

Although I got a very quick reply from VF, it was fairly unhelpful and didn’t offer any way to help remedy the problem. Would be unlikely to consider ordering from this website again. I understand it’s not their product but even an offer of a discount for a new grinder wouldn’t have gone amiss considering what I’ve spent in the past on here.

Thank you Kube for making this grinder that is simple to use and a great shape. Thanks vapefiend for the brilliant service again.

...good is a mesh that was easy to remove from the ring in the catch area so it works as a 2 piece with a non filtered and larger catch area or even better a twist out dish?

Had this now for a while. For price it's a solid grinder. However it often doesn't have all the flower come through to the bin chamber. Also can take a while to grind.

Great grinder great for getting proper purchase

As someone who suffers from weak grip, the shape of his grinder is amazing really easy to grip and is easy to use even if you were to fill the grinder up all the way

awesome

Brilliant grinder

Sometimes this is the only grinder I can use, when my hands are bad. A lovely design. Feels great!

The item is awesome 😎

Using the grinders good, I like the fact different directions give different grinds but the mesh screen could do with being finer especially considering the price point. Overall I’m happy with it

Brilliant grinders spot-on grinds to perfection

This is a nicely made grinder and everything fitting together with magnets means there’s no screws to cross thread or clean up when they inevitably get dirty.

The kief screen section does twist in, but it’s more of a notch than a thread so would be easy to clean if it ever needed it. It takes roughly a quarter turn, if that so it is easy to detatch.

I have quite big hands but this is easy to hold and twist and I think it being square helps a lot.

The only way I think this could be improved is if it had the option to switch out the kief screen for a solid dish as I personally don’t really like them… but I knew the grinder had this when I bought it.

You can choose which level of grind you want depending on which way you turn it, but I personally just twist it both ways and get a medium-coarse grind that is nice and consistent and seems to work well in my mighty.

Very pleased with this grinder. I find it is far easier to grind thanks to the square shape, (don't know why more grinders don't have this shape) especially for people who may have pain or arthritis in their hands. Turning it is very effortless. Love the way it easily disassembles and snaps back together. The little herb tray on the top is excellent too. Terrific grinder, aesthetically and functionally

Generally like it. Suitably big and square, fluffy grind but takes time for it to filter into the bottom. Not sure if I prefer my SLX though.

Beautiful. Effortless. Just feels right.

sold faulty product and wouldnt replace…
AVOID PRODUCT AND THIS COMPANY

sold faulty product and wouldnt replace or fix it, appaling customer service tried to blame me on condition of grinder

"Our technician has completed their assessment, and due to the poor condition of the grinder - we're unable to offer a warranty replacement or credit. "

they went back on word after saying it would be replaced or repaired. see below there original response after i sent photos

Hi Blaine, thank you for your reply.

At this stage we would only be able to repair the grinder (if that's possible) or replace it with the same model.

All the best,

Adam

Vapefiend

AVOID PRODUCT AND THIS COMPANY

Works well, even grind and premium magnetic connections

Lovely grinder

Amazing grinder it's so underrated I prefer this to the klip or santa Cruz anyway..perfect for vaping

If you like to smoke fine aluminium dust particles, then this is the grinder for you! The rim on the upper chamber is too long, causing it to rub on the lid. After a few turns, you can clearly see a layer of fine aluminium dust inside the grinder. How lovely when mixed in with your herb!

The concept it first class. If this was manufactured out of stainless steel and tolerances were stricter, this would be the best grinder on the marke, but as it is, it's fit for one thing only; the bin.

I'm now grinder-less until after the weekend, so I'm not at all happy.

This grinds really well I love there are no threads to get clogged up magnetics are strong and it does not fall apart it stays together well and a slight turn and lock system where the dust collects so its safe and secure great for gripping and turning no more struggling with a round Shape easy to grip and turn I recommend this to everyone I won't be using any other grinder now this is as good as they get in my opinion worth every penny well happy with this purchase and service I got too.

Really good, easy to use

It’s a beauty when in the hand with lovely finish.
I did have to return as there was a metal on metal feel that after operating without herbs created a fine dust of aluminium and anodised material.

Vapefiend were brilliant and gave me no grief returning the item.

Best consistency for vaping, super smooth while grinding. Also heavy, doesn’t feel like a 50£ grinder.
The best alternative to the BCG imo

Easily the best grinder I’ve ever had. It grinds brilliantly and the square shape makes it really easy to hold and apply torque. Plus it looks lovely, it feels lovely, the fit and build quality is excellent, and all the parts snap together with a really satisfying clunk.

Worth the money.

Seriously nice medium size grinder, very well made and feels solid. Can grind around 1g of your chosen material at a time and has two settings. Anti clockwise for a coarse grind and clockwise for a fine grind ideal for dry herb vaporizers. Herb comes out really fluffy too. The indented bowl on the top is nice for easy access to refill your device. Would recommend highly and glad I purchased

It’s great ! Easy to use no fiddling about with tiny screw threads , it’s all magnetic 🧲 which is perfect the magnets are very strong and work perfectly. I also love the fact that it has a grinder funnel type lid which you can put you grind into to make it easier to fill your vape 💨. I am very please it was definitely worth the wait !!!