Trend 3-Inch Double-Sided Diamond Sharpening Stone, 300 & 600 Grit, Credit Card Sized Honing Stone with Storage Wallet, DWS/CC/FC

This thing really works well. I saw someone using this on YouTube for sharpening there with turning tools and this is like 1/10 to cost of all the equipment you need to sharpen the tools and much quicker and easier way so I decided to try it. I got to say I'm impressed it really does work well it's small it's easy to handle it's easy to use and it even works on the carbide tungsten tools. I invested over $300 in a bench grinder and diamond wheels and a jig to set up the tools and now I got to say that I should return all that and just keep this little card.

Happy to have this to sharpen my carbides

Love it

this stone with some Windex keeps every bit and knife on my shaper/planter/jointer in top cutting condition, excellent quality for the price and the 600 grit is perfect for putting a nice sharp edge on the cutters.

I was skeptical but this really works on my forstner bits.

This hone often produces a better burr than my CBN wheels. It seems the lapping fluid is unnecessary. Also, it is nice and stiff.

I carry this in my day bag. Recommend. For the weight and size, it's the best I've found. Price is absurdly high, though. If you just want a sharpening stone for your toolbox, there are much cheaper ones to be had.

Many pros say Trend is the way to go for diamond stones and I tend to trust their judgement. Never using one before it tends to be a bit awkward but that should work out in time. Appears to be of good quality and it works if you do your part right. I have some diamond files that I prefer but they are harder to fit into some tighter places that the credit card file fits with ease. I have used it on several Forstner bits, router bits, countersinks with average to good results. They definitely cut better than before I dressed them up.

Great for sharpening stuff

Very pleased with purchase, great for sharpening router bits etc.

Good quality product at a reasonable price. Performs exactly as I'd hoped

J'ai acheté cette cette "pierre" principalement pour aiguiser rapidement mes fraises et forets avant usage sans avoir à sortir tout le bazar d'aiguisage. Et bien elle remplit totalement son rôle. Je retrouvé un "mordant" et une qualité de fraisage agréable. Elle est très pratique : petite, dans une petite pochette qui protège plus son entourage dans la boite à outil que la pierre elle-même et les 2 grains sont parfaitement complémentaires. Mon seul "soucis" sur cet article est que le prix fait du yo-yo. Souvent j'attends d'avoir plusieurs article dans mon panier amazon pour passer une commande et optimiser les livraisons. Je l'ai mis dans mon panier à 9€ et le jour de la commande elle était passé à 16€ (puis de retour à 9€), c'est rageant.

Handy little diamond card for giving your router bits a tickle-up. Saves buying new ones when they get a bit dull. No more woodsmoke!