Handtools for Trail Work
Tools for Sharpening, Continued
Whetstones
Use whetstones to finish sharpened cutting edges, or when touching up edges in the field. Whetstones are natural or manmade. We recommend synthetic abrasives for sharpening tools because they are harder than natural stones, the uniform honing particles assure an even sharpening surface, and they cost less than natural stones. If you prefer finishing with a natural stone, use a synthetic stone first. This produces a very sharp edge and saves expensive natural stones from unnecessary wear on rough work.
Most whetstone manufacturers soak new stones in light oil. You may also apply oil to the stone's surface before honing to float off pieces of metal and grit and prevent them from lodging in the stone's pores. If the stone glazes because the pores fill with shavings, clean it with citrus-based solvent and a stiff brush.
When whetting, use the entire stone surface to maintain its shape. Rotate the stone periodically to ensure even wear. If the surface becomes uneven, it may be reshaped by rubbing it over a sheet of glass sprinkled with carborundum powder or on a sheet of coarse sandpaper. Keep stone surfaces wet while reshaping them.
| Stone | Natural | Synthetic | Size (inches) | Cost (dollars) | Use | Sharpening Speed |
|---|---|---|---|---|---|---|
| Black Hard Arkansas | X | 8x2x1 | 50-60 | edge polishing | very slow | |
| Hard White Arkansas | X | 8x2x1 | 30-40 | edge finishing | slow | |
| Soft Arkansas | X | 8x2x1 | 15-20 | sharpening | medium | |
| Washita | X | 8x2x1 | 25-30 | shaping - roughing | fast | |
| Silicon Carbide | X | 8x2x1 | 8-10 | roughing to sharpening | fast to medium | |
| India | X | 8x2x1 | 8-10 | roughing to sharpening | fast to medium | |
| Crystolon | X | 8x2x1 | 8-10 | roughing to sharpening | fast to medium | |
| Diamond-Nickel | X | 6x2x11/16 | 25-30 | sharpening hard steels | medium | |
| Silicarbide-Rubber | X | 8x2x1 | 8-10 | deburring | fast |