1)Split Screen Diamond Stones. With three layers of monocrystalline diamond, these extra-wide Split Screen Diamond Stones will give you a sharp, well-honed blade on knives, gouges, chisels, and fine pointed tools.

2)great for sharpening HSS and carbon! The fast cutting surface pattern is self-clearing and stays flat.

3)The continuous diamond ''micro pad'' (the non-patterned area in the corner of the stone) is ideal for sharpening very small tools.

4)These stones may be used with or without water.