Best knife sharpening system for a knife you made: stones, jigs and belts

The best knife sharpening system for most makers is a 1000/6000 combination whetstone plus a coarse diamond plate. It sharpens any steel you're likely to use, the plate keeps the stone flat, and the pair costs around $100 in the US (Oct 2026), a little more from UK specialists. Add a guided jig if you want repeatable angles without years of practice, or belts if you already own a grinder.

Sharpening a knife you made is different from touching up a bought one. You set the first edge yourself, often on a blade that is still too thick behind the edge. So this guide starts there, then compares stones, jigs and belts, with the grits and angles that suit the knives on our template pages.

Best knife sharpening system for makers: at a glance

What is different about sharpening a knife you made?

The first edge is yours to set. A factory knife arrives with an edge bevel. Yours doesn't. You grind the main bevels, leave some thickness for heat treatment, then sharpen. If you grind too thin before hardening, the edge can warp or crack, a mistake KnifeDogs veterans list near the top of beginner errors (KnifeDogs).

So the edge is often too thick at first. After heat treatment, thin the bevels on the grinder or with files, then sharpen. If you try to sharpen a thick edge on a 1000 grit stone, you'll be there all evening.

You chose the steel. Simple carbon steels (1084, 80CrV2, O1) sharpen easily on anything. Stainless steels like AEB-L and 14C28N are fine on whetstones too. Harder, more wear-resistant steels are where diamond plates earn their place. See our steel guide.

Whetstones: which grits do you need?

For most makers, two grits do almost everything:

• About 1000 grit to set and repair an edge.
• About 4000–6000 grit to refine and polish it.

A coarse stone or diamond plate (220–400 grit) is useful for chipped edges and reprofiling. Above 6000 grit you're polishing for looks more than function.

Knife Steel Nerds' CATRA testing found edge finish had a much weaker effect on slicing edge retention than edge angle. Edges finished at 600 grit did marginally better than 320 or 8000 grit in that test (Knife Steel Nerds). So don't chase very high grits for working knives.

Combination stones with 1000 on one side and 6000 on the other are the usual starting point. The King KW65 is the best-known. In the US, a King 8 × 2 × 1 in 1000/6000 stone was $36.99 at Woodcraft (Woodcraft, Oct 2026). UK specialist The Japanese Knife Company lists combination stones from £49 (1000/3000) to £89 (1000/6000) (JKC, Oct 2026).

Do you need to flatten whetstones?

Yes. Water stones wear hollow, and a dished stone rounds your edge. Rub the stone on a coarse diamond plate (or wet-and-dry paper on glass) until a pencil grid drawn on the face disappears evenly. Do it every session or two.

Diamond plates: when are they worth it?

Diamond plates cut hard and wear-resistant steels quickly, stay flat, and flatten your water stones. DMT's 8 × 3 in Dia-Sharp plates were $62.99 each in coarse (325), fine (600) and extra-fine (1200) at Sharpening Supplies in Oct 2026; the extra-extra-coarse (120) and the 4000 and 8000 grits were $97.49 (Sharpening Supplies).

If you only buy one, buy a coarse (325). It reprofiles edges and flattens stones.

Knife sharpening jigs: Lansky, Work Sharp, KME

A knife sharpening jig holds the angle for you. You clamp the blade, then run stones on guide rods (Lansky, KME) or a fixed angle arm (Work Sharp Precision Adjust). They're the quickest way to a consistent bevel, and good for small knives.

Sources: Sharpening Supplies, Lansky; Heinnie, Lansky Professional; Sharpening Supplies, Work Sharp PA; Knivesandtools, KME.

Downsides for makers: clamps can mark a polished blade (tape it), long kitchen knives need repositioning (the Work Sharp PA handles blades up to 10 in, about 250 mm, in one clamping), and a clamp on a tapered blade changes the angle along the edge.

Can you sharpen on a belt grinder or belt sharpener?

Yes, and many makers do. Belts are fast and leave a slightly convex edge that holds up well on outdoor knives.

The risk is heat. You tempered the blade at around 175–205 °C (350–400 °F) (see our steel guide). A thin edge on a fast belt can pass that in seconds and go soft. Keep the belt slow, use light pressure, and dip the blade in water often. If the edge is too hot to touch, it's too hot.

Slow the belt down. Diktator's belt-speed guide suggests much slower speeds for sharpening, for example a 4 in (100 mm) drive wheel at 1,200 rpm, about 14 mph (6 m/s) (Diktator). A variable-speed 2x72 makes this easy; see belt grinders and the belt speed calculator.

Watch the tip. Belts round tips quickly. Lift the handle as you reach the tip to follow the curve, and stop short of rolling off the end.

Powered sharpeners such as the Work Sharp Ken Onion Edition use narrow belts with an angle guide. The Mk.2 has a 15–30° guide in 0.5° steps, 7 speeds and five belts from P120 to 6000, at $179.95 from Sharpening Supplies (Oct 2026) (Sharpening Supplies). In the UK, Knivesandtools listed its replacement belt set at £21.99 and the Blade Grinding Attachment at £83.99 (Oct 2026) (Knivesandtools).

What angle should you sharpen at?

The angle is the single biggest factor in how well an edge cuts and how long it lasts. In Knife Steel Nerds' CATRA tests, lower edge angles cut far more card than higher ones: over 1,000 mm at a 20° inclusive edge against under 100 mm at 56° (Knife Steel Nerds). Lower angles are also more fragile, so match the angle to the job.

Typical per-side angles:

Lansky's angle guidance: Heinnie, Lansky Professional. Jig angles are approximate, because the true angle changes with blade width in the clamp.

Scandi grinds are different. The whole bevel is the edge, so lay the bevel flat on the stone and sharpen the entire face. Our bushcraft template shows the bevel line.

Inclusive angle is double the per-side angle. A 20° per side edge is 40° inclusive. Our grind geometry calculator works it out from stock thickness and bevel height.

Do you need a strop?

Yes. A strop removes the last of the burr and polishes the edge, and it's how most makers touch up between sharpenings. Leather on a flat board with green compound is the usual setup. Pull the edge away from you (edge trailing), never push it into the leather.

How do you know a knife is sharp?

• The burr test: after sharpening one side, drag a fingertip gently across (never along) the edge from spine to edge on the other side. A raised wire, the burr, means you've sharpened right to the edge. No burr, keep going.
• The light test: hold the edge under a bright light. A sharp edge reflects nothing. Bright spots are dull or rolled.
• The paper test: a clean slice through printer paper without tearing.

FAQs

What is the best knife sharpening system for beginners?

A 1000/6000 combination whetstone with a coarse diamond plate to keep it flat. It's cheap, works on every steel and knife shape, and teaches you angle control. If you struggle to hold an angle, a guided jig such as the Work Sharp Precision Adjust or a Lansky gives repeatable results while you learn.

Whetstone or knife sharpening jig: which is better?

Neither is better at the edge; they differ in skill and speed. Whetstones take practice but handle any blade, including long kitchen knives. Jigs give consistent angles from day one but are slower, can scratch blades, and struggle with long or tapered blades. Many makers use a jig for small knives and stones for kitchen knives.

What grit whetstone do I need?

Start with about 1000 grit to sharpen and 4000–6000 to refine. Add a coarse stone or diamond plate (220–400) for chips and reprofiling. Knife Steel Nerds found very fine finishes don't improve slicing edge retention much, so higher than 6000 is mainly for polish and looks.

What angle should I sharpen my knife at?

Kitchen knives usually sit around 10–15° per side for thin Japanese styles and 15–20° for Western knives. Outdoor and hunting knives suit about 20–25°, and choppers 25–30°. Lower angles cut better but chip or roll more easily, so go lower on hard, thin kitchen knives and higher on knives that see impact.

Can I sharpen a knife on a belt grinder?

Yes, but slow the belt down, use light pressure and cool the blade often. A thin edge can overheat past its tempering temperature in seconds and go soft. Lift the handle at the tip so you don't round it off. Finish on a strop to remove the burr.

Do I need to soak a whetstone?

Most traditional water stones, including the King 1000/6000, are soaked until bubbles stop before use. Some modern "splash and go" stones only need wetting. Diamond plates only need water on the surface. Check your stone's instructions, as soaking a splash-and-go stone can damage it.

Sources

1. Knife Steel Nerds, "Maximizing Edge Retention: What CATRA Reveals about the Optimum Edge" (2018, updated 2020): https://knifesteelnerds.com/?p=801
2. Knife Steel Nerds, steel edge retention (2018): https://knifesteelnerds.com/2018/11/19/steel-edge-retention/
3. KnifeDogs, most common beginner mistakes (2011): https://knifedogs.com/threads/most-common-mistakes-that-beginners-make.15486/page-2
4. Woodcraft, King 1000/6000 combination waterstone: https://www.woodcraft.com/products/king-combination-waterstone-8-x-2-x-1-1000-6000-grit
5. The Japanese Knife Company, combination stones: https://japaneseknifecompany.com/stone-type/combination-stone/
6. Sharpening Supplies, DMT 8 in diamond stones: https://www.sharpeningsupplies.com/DMT-8-2X-Diamond-Stone-P59.aspx
7. Sharpening Supplies, Deluxe Lansky system: https://www.sharpeningsupplies.com/products/deluxe-lansky-sharpening-system
8. Heinnie, Lansky Professional system: https://heinnie.com/lansky-professional-sharpening-system
9. Sharpening Supplies, Work Sharp Precision Adjust: https://www.sharpeningsupplies.com/products/work-sharp-precision-adjust-knife-sharpener
10. Knivesandtools UK, KME diamond stone kit: https://knivesandtools.co.uk/en/pt/-kme-precision-knife-sharpening-system-diamond-stone-kit-kf-d4.htm
11. Sharpening Supplies, Work Sharp Ken Onion Edition Mk.2: https://www.sharpeningsupplies.com/products/work-sharp-ken-onion-edition-knife-sharpener
12. Knivesandtools UK, Work Sharp Ken Onion accessories: https://www.knivesandtools.co.uk/en/ct/work-sharp-ken-onion-spotlight.htm
13. Diktator Grinders, belt speed calculator: https://diktatorgrinder.com/pages/belt-speed-calculator