YJZ 1Pcs Diamond Sharpening Stone,400 Coarse Grit/1000 Fine Grit Double-Side Diamond Sharpener Whetstone for Various Kitchen/Garden Tools Knives Scissors

This set is made up of four different grits, they come with a pull tie bag for storage, they are Quality, easy to use, give great Performance, they are very stable, and will be of good service, these are the best value for money

These little "stones" are an absolute god tier item for beginner or hobbyist crafters and wood workers. If you have a plane or planes that you use with a fair regularity, or even just a few chisels that you sometimes use then these are an excellent way to get them properly sharp and realise the satisfaction and, dare I say it - pleasure that comes from using a properly sharp tool. That said they need a little setup to get comfortable use out of them. Though the width across the sharpening face is enough to get a straight grind on most common plain irons the fact that they are diamond plated and cheep means that the depth of the "stone" is super thin. that and the fact that the underside is plastic means that they don't weigh enough to hold onto a wooden bench or even a kitchen worktop on their own, dispite the "non slip" coating on the bottom. This can encourage uneven and excessive pressure being aplied during the grinding and end up hampering the sharpening process. It's also worth noting that these stones do not react well to highly viscous lapping aids (such as oils and gels) so it's best to use them dry (which they can tolerate just fine) or with a super light, non water based, lapping fluid.In the end they are great value for occasional use and those just starting out or learning how to sharpen on a block. The surfaces are flat and level across all of the set that I got and the grits are well represented on each plate. Although not really durable enough for a fulltime workshop I never expected them to be target at that market. If you're looking for the cheep way to get really sharp steels and irons then this is a very valid solution.

Didn’t have a great deal of hope for these as they are thin and cheap. I’ll eat my words they are great. Yes they are thin but not flimsy, the finish is to a high standard and they do a great job sharpening my chisels and planes. The black grip on the back is rubbish. But use a proper grip map or make a holder and it will be fine. For the money they are great!

I rarely do reviews, and I learned long ago that opinions about sharpening normally start arguments.But my experience so far with these plates may be useful to others.I'm a hand-tool woodworker and have an affection for fine older tools. This often requires restoring primary bevels, mainly on planes and chisels.In my world there are 2 different 'sharpening' tasks (and one isn't actually sharpening). Restoring a primary bevel and the backs of irons or chisels is something that often needs doing and is tedious. For me it's all about removing unwanted material quickly but with control and reliable flatness.Over many years I've tried almost everything - natural stones, water stones, wetstone Tormek (excellent for bevels, messy, expensive), moderately expensive diamond stones, cheap diamond stones, 3M film, ceramic stones....Recently I had been using cheap diamond stones and regarding them as disposable (I think of all sharpening media as consumables to some degree or another). Of all options I had tried before, these gave me reasonable speed, flatness , low wear and low cost.I'd read about these stones somewhere and at this 'silly' price I needed to try them. So far I am fairly knocked out.I have an old Stanley 720 chisel which in a past life had acquired a convex back (just a thou or 2 but enough to make flatting the cutting edge impossible).2 minutes on the 1200 grit (yes, the finest of the 4 plates) I had a noticable relief appearing along the back (we're probably talking microns here, enough to just see light through with a good straightedge).I can't comment on durability but I'm confident they will last months, maybe more (I'm quite a light user) and at this price that is way better than acceptable to me.So the measure is: flatness? Excellent, again checking with a straightedge (I've bonded them onto 18mm mdf - flat enough for me). Speed? really fast (I use a small amount of WD40, water may be OK, dry is probably a bad idea due to clogging). And value? Rediculous.I've no intention of using these for actual edge sharpening, I'll stick with 3M films for that (just my choice), but for edge preparation I'm really impressed. If I got through 3 sets a year (I'm certain I won't) I'd be just as impressed.Amazing. Try a set.

I saw these recommended on an American woodworkers' YouTube channel. I'd been using abrasive paper on flat glass but although it worked it seemed very wasteful as I sharpen quite a few plane, chisel and other irons. Usually the prices for good lapping stones are prohibitive.I recessed then attached these stones (pva'd lightly so they can easily be removed if needed) on a wide marine ply bench hook and it works great. I only wish they'd had a wider gap in the range of grits (400, 600, 1000 and 1200) but for the price they are a great way to get irons back to work!

Not that impressed, Don’t really cut that well . Old oilstone does a much better job

Good product

I love sharpening tools and knives and have wanted to try diamond stones for ages as Paul Sellers is always going on about them. I couldn't justify the expense of the better ones as my vintage oil and waterstones give me as good an edge as I needt, but I have tool acquirement syndrome. I've since bought better diamond stones but I still use these when I buy old chisels or plane blades to take the bulk off. Some reviewers mistake the stones of being worn in as worn out. I believe these are electroplated rather than set in acrylic so they don't wear out as fast as you might imagine. For this price you can't go wrong.