Lansky Medium-Curved Blade Hone HR280 is a medium-graded ceramic stone dedicated to the pre-sharpening of knives with an inward curved edge, e.g. kukri or karambit.
The 280 gradation is used to pre-sharpen very dull cutting edges. The semi-circular profile of the stone was created for sharpening knives and tools with a curved blade such as karambit, hawkbill, kukri, scythe.
The stone is attached to a polymer housing with an ergonomic shape, in which there is a brass threaded insert for the guide (not included).