DMT Diamond Flat File Grit:Fine the risk of cracks when

the risk of cracks when the drill goes through the material is reduced with a larger point angle

Grit clearly marked on side of stone

They feature durable

Hard Arkansas and Hard Black Arkansas stones available to fit the Norton IM313

Do you recommend these wheels for turning tools

DMT Diamond Flat File Grit:Fine the risk of cracks whenThe DMT Diamond Flat File works well for sharpening tools. One popular application of this file is to sharpen carbide tools that can't be sharpened with anything but a diamond abrasive. The Diamond Flat File uses 100% monocrystalline diamond particles for fast and efficient sharpening. The length of the abrasive portion of the file is 4 1 2 inches with a total length of 9 1 2 inches. When folded it is just 5 inches. The extra coarse abrasive diamond