At the same time, the grit, in the first approximation, is similar to the truth. 
The price at the time of the order was 60 r per piece, and the idea immediately clicked in my head to print myself an over-budget analogue of the triangular spiderco sharpener.
The abrasive itself is in some rubbish and scratched. Otherwise, I would just throw these bars away and forget, like a bad dream.
Let’s check with a goniometer.
I took the 3D model for Tingevers The difference in the length of the base is more than a millimeter. And that means there would be no review.
Unfortunately, or maybe fortunately, I printed out the body of the triangle in advance.
"Feihuynya" – thought Stirlitz.
To summarize: I do not recommend these stones, although if a pair of identical ones arrives, then with a 3D printer you can organize a penny sharpener for any Deshman kitchen workers in the country. Dissecting in the open spaces of Aliexpress, I came across penny abrasive bars of triangular section.
On it you can scrounge something horizontally. It seems like it is needed for sharpening scissors, but this is not accurate. In principle, the model could be corrected, but the stones are already complete FeiHua, so we will leave it as it is. Spyderco triangle at minimum
What came of it – read under the cut. I ordered three pairs: 240, 400 and 600 grit. Immediately, after opening the package, I was greeted by a life-affirming marking on one of the stones. You can insert Chinese diamond files into round holes. Instead of 20, 30 and 40 degrees, we have 30, 40 and 50 respectively. By the way, stones are wildly dusty and are produced literally before our eyes.
