Lineman's snips, also called electrician's shears, are a type of scissors used for cutting electrical wire and cable. They have slightly offset blades that allow for a clean cuts without crushing the insulation around the wire.
To sharpen your lineman's snips, start by using a fine-grit sandpaper to remove any burrs or nicks from the blades. If the blades are extremely dull, you may need to use a coarse-grit sandpaper first followed by a finer one. Once the blades are smooth, hold them at a 30-degree angle and use a sharpening stone to hone them. Start with light strokes and increase pressure as needed; be careful not to over sharpen or damage the blades. Finally, wipe off any metal shavings and apply oil to lubricate the moving parts before using your snips again.