How to Sharpen a Pocket Knife: 5 Methods Compared (2026)

What you're actually doing

A dull pocket knife needs one of two jobs. Sharpening removes steel to form a new edge. Finishing, usually called honing or stropping, refines an edge that already exists. Wikipedia notes that "honing" is ambiguous, meaning either fine sharpening or straightening (Wikipedia), so we say "finishing" for the light steps.

Everything below comes from the makers' own pages, opened in October 2026. We haven't tested these tools: these are published angles, steps and prices, and the difficulty ratings are our judgment. Knife-carry rules vary by state and country, so check local rules. New to folders? Read how to close a pocket knife first.

Pick the angle first

The edge angle is the angle between blade and stone; the included angle is both sides added, twice the edge angle on a symmetric edge. Makers mix the two conventions:

• Benchmade: most of its knives are sharpened at 30 to 35 degrees inclusive, about 15 to 18 per side (Benchmade).
• Victorinox: resharpen on a whetstone at 15 to 20 degrees, a 30 to 40 degree cutting angle (Victorinox).
• Spyderco Sharpmaker: 30 degrees (15 each side) or 40 (20 each side) (Spyderco).
• Lansky: 17, 20, 25 or 30 degrees; it calls 25 the recommended angle for most knives that need a durable edge (Lansky).
• Work Sharp Pocket Knife Sharpener: fixed 25 degree guides (Work Sharp).

Two rules follow. Match the maker's published angle when there is one: Benchmade says reprofiling to a different angle takes more work and removes more steel, and that "keeping a consistent angle is more important than exact numbers." And never go shallower than the existing bevel. Work Sharp explains that a narrower angle makes the abrasive hit the bevel's shoulders and never touch the final edge, so you can't raise a burr (Work Sharp).

Our reading: on a blade ground at 15 to 18 degrees per side, a fixed 25 degree guide cuts a steeper edge; a 15 per side setting stays close.

Methods compared

Whetstone

Nothing holds the angle but your wrist: cheapest to start, slowest to learn. Smith's 6-inch DualGrit has 400 and 1,000 grit sides and works on single or double-bevel knives, but its page doesn't say whether to use water or oil, so follow the box (Smith's). Spyderco's ceramic benchstones, by contrast, "do not require oil or water" (Spyderco).

1. Choose grit. Benchmade starts a chipped or very dull blade at 200 to 400, then moves to 600 to 1000 and 2000 or finer. Smith's 400/1,000 covers the first two; the fine stage is where a strop comes in.
2. Make heel-to-tip strokes at your angle, counting strokes. Work Sharp's engineer suggests five per side, feeling for a burr after each round.
3. Check for the burr by touching the side opposite the one you're sharpening, from spine toward edge. Once it runs the full length, do five final strokes on the other side.
4. Finer stone for about 10 passes per side with lighter pressure (Work Sharp).

Watch for: wobbling wrists, pressing hard (Benchmade: "let the abrasive do the work") and uneven strokes per side.

V-rods: the Spyderco Sharpmaker

The Sharpmaker's ABS base has keyed holes that set the angle. You keep the blade's plane vertical and draw the edge along each stone. It includes medium (brown) stones for aggressive work, fine (white) stones for finishing, aluminum safety rods, an instruction book and a DVD. For serrations, use the stones' rounded edges and a slightly looser grip (Spyderco).

Best for: a repeatable angle without clamping the knife. Limit: two angles only. The 15 per side setting is nearer Benchmade's figure; both sit inside Victorinox's 30 to 40 degree range. Watch for: letting the blade lean.

Guided systems: Lansky and Work Sharp

Lansky's clamp holds the knife steady. The Standard 3-Stone kit has 120, 280 and 600 grit hones, honing oil, guide rods and a case, with the four angles above (Lansky). Lansky says the fine hone suits frequent touch-ups, so skip the coarse one unless the edge needs rebuilding.

Work Sharp's Guided Field Sharpener has 220 and 600 diamond plates, ceramic rods, a leather strop and 20 and 25 degree guides (Work Sharp). The benchtop Precision Adjust sets 15 to 30 degrees with a knife clamp (Work Sharp).

Best for: beginners and anyone who wants the angle chosen, not guessed. Watch for: unequal strokes per side, and stopping before a burr forms.

Pocket and pull-through sharpeners

All cost about $20 and most fix the angle. Lansky's Blademedic sets 22.5 degrees per side, 45 inclusive, with tungsten carbide, ceramic and diamond elements. Lansky warns the carbide is "extremely aggressive" and meant for quick fixes; use the ceramic for regular upkeep (Lansky). Work Sharp's Pocket Knife Sharpener has a 320 grit diamond plate and ceramic rod at 25 degrees: push the edge along the diamond until a burr forms, repeat on the other side, then hone on the ceramic (Work Sharp). Victorinox's pen-sized Dual-Knife Sharpener is the freehand exception: a grinding stone and ceramic notch, with a steady 15 to 20 degrees left to you and a "best for experienced users" label (Victorinox).

Stroke direction differs by tool. On the Dual-Knife Sharpener's grindstone, Victorinox says to move the blade toward the cutting edge, not back and forth, then finish with ceramic or diamond (Victorinox). Follow your tool's manual.

Watch for: a preset steeper than your knife's (22.5 per side versus Benchmade's 15 to 18).

Leather strop

A strop doesn't repair a dull knife. Work Sharp's kit has a double-sided leather strop with 7 and 1.5 micron diamond emulsion, and says to start with 10 light strokes per side, then 10 on the finer side. It describes stropping as the step that removes microscopic burrs and polishes between sharpening sessions (Work Sharp). Benchmade likewise says to finish with a strop and compound.

When to send it to the maker

Mail-in beats DIY when the edge is chipped, the tip is broken, or you can't replace the knife. Policies differ:

• Benchmade LifeSharp is free sharpening for Benchmade knives, done by technicians at its Oregon factory, with no registration (Benchmade). The care guide says a $20 fee covers packaging and shipping, avoidable by visiting the Factory Store or a participating dealer. It also says a new blade or handle is free of charge, and more extensive repairs go through a warranty claim (Benchmade).
• Spyderco lists blade sharpening with no service charge and $10 return shipping for up to four knives. You pay inbound shipping. Re-grinding a broken tip, or re-profiling a chipped edge where possible, is $20 plus $10 return shipping, and its warranty excludes improper sharpening (Spyderco).
• Victorinox's FAQ answer on resharpening describes doing it yourself.

These pages don't publish turnaround, so ask before you ship. Our pocket knife brands guide covers who stands behind what.

Which one to pick

• Never sharpened: a guided kit or the Sharpmaker.
• Already comfortable freehand: a whetstone.
• Need a bag fix: a pocket sharpener.
• Edge is fine, just fading: a strop.
• Damaged or irreplaceable: mail it in.

Choosing which blade to carry? See our EDC knife guide.

Sharpening is a slow, hands-on habit, a bit like fiddling with favorite gear. If you like carrying things that feel good under your thumb, echoPi is an EDC fidget slider in development, with real clicks you can program and a note on each one. Join the list to hear when it's ready.