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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

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