The sub-micron tungsten carbide blade sharpens to a smooth finish requiring very little force. Axes, hoes, knives of all sorts, scissors, etc. are all suitable candidates. We found it particularly useful for touching up utility knife blades. Half a dozen strokes on each side brought the edge easily back to new if not better. The slim tip is ideal for curved blades such as curved blade pruners. Supplied with simple instructions, the folding blade, locks open, the stainless-steel body has anodised aluminium scales with a belt clip.