100mm 4 inches Diamond Lapidary Saw Blades Thin Rim 0.45mm Arbor 5/8 in Gemstone Cutting Blade Masonry Jewelry Tools for Rock Pack of 10Pcs

I've purchased blades from this brand before and find that they're a really sensible sweet spot for performance and value. Are there blades that will last longer? Sure. But they'll also cost you a lot more per unit. I put these in my 4/5 inch Hi Tech trim saw and use them on everything from script stone to agates. I try to be careful with my technique and my material, but really appreciate having a reasonably priced blade so that when I do inevitably make a mistake I don't feel terrible about ruining my blade. These cut even hard material reasonably well. I got the very thin ones so I would have minimal material waste, but that also means they're fairly fragile - I like not having to beat myself up when I finally bend or chip one. These are diamond blades, and need to be run with a water or oil coolant (I use water on blades this small) in order to keep them functioning properly. Don't run them dry or the diamonds will turn loose! But they're a good thin blade, which minimizes material loss on my nicer stuff, and I like the case they come in. It really helps keep my workshop tidy and my stuff organized.

Great saw blades great price will buy again highly recommended.

I can barely get through cutting a few pieces of stone material per blade. This is not a very good product, but it is cheap and comes with several blades. I may consider buying it again. I’m not sure yet.

These are good blades for lapidary cutting.

For what I bought them they work just fine.

These blades are VERY thin. They are very easy to bend and hard to keep a straight edge while cutting material. The cutting edge is not very strong, and the blades become dull rather quickly.

I do rockhound lapidary as a hobby and find this pack of 10 extra thin notched rim diamond blades super useful. These have a 0.23 inch thin core (0.25 in. at the rim) so flex easily and are intended to slowly trim very small pieces of precious, soft stone. Rhodochrosite, turquoise, opal and malachite are examples of semi-precious rock that this will cut. These are for very tiny pieces possibly no thicker than 1/2 inch. These are NOT rugged enough for jade, agate, jasper, petrified wood, ruby, etc. These are not for "slabbing" but can cut a small nodule say of turquoise in half. For tougher precious gemstone material I would use a high quality thin sintered rim blade - at a significantly higher cost per blade. Picture 1 is the blades; 2 a closer view of the notched rim that has diamond grit embedded in the notches. These have a 5/8ths inch arbor hole. A set of small washer adapters for 1/2 inch arbor holes is included. I appreciate that and the plastic case to hold the blades. The blade on my 6 inch trim saw pokes up enough for use when mounted. (Picture 3). I slit a tiny piece of precious rhodochrosite to show how well this was able to do with VERY LITTLE saw kerf waste lost from the precious rock piece. Excellent for trimming high value tiny pieces! I used mineral oil to cool this blade (NEVER use DRY) and would recommend it for those times that I want to carefully trim a small piece of precious material and absolutely minimize material loss. I Recommend these JINGLING 100mm Thin Rim 10 Pack as a great value for the limited lapidary usage I speak of. These are NOT satisfactory for trimming most hard rockhound lapidary rock, just softer, thin small pieces of precious/semiprecious stone. They are a great value!

I have one of these a go on my little tile saw (I use it as a trim saw). The size was accurate and it installed with no issue. It cuts well (considering how thin the bald is). and the cuts are very smooth. It is very strictly for trimming only as any kind of pressure to the side will ruin the blade (not that I learned that the hard way). Blade life was ok for as little diamond as was on the rim. Being so thin the blade can and will cut skin so be careful. Perfect for expensive material of for making tight quarter cuts on slabs.