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How to sharpen knives correctly? A practical guide to knife sharpening
If you want your knife to really cut and not crumple, it’s not just about sharpening it, it’s about doing it in the right order. Sharpening is a whole process, from shaping the edge to polishing, and the consistency of your approach will determine not only the result but also the life of the knife.
The UKSG.tools team — experts in professional sharpening — have put together a detailed guide for you, in which we explain the correct sequence for sharpening knives, whether they are kitchen, camping or craftsman knives.
Why can’t the sharpening procedure be ignored?
Sharpening a knife is the step-by-step shaping and grinding of the cutting edge. If you skip one of these steps, you risk:
getting an uneven edge;
losing sharpness after just a couple of uses;
excessive grinding of the steel;
disappointment in your own skills (although it may not be you, but the choice of sharpening stones).
This is why we always recommend sharpening with control of grit, angle and steel condition, using proven tools — both hand-held and with guide systems.
If there is damage, use a rough diamond or CBN stone from UKSG.tools (60-100 grit) to restore the shape.
PDT CBN Stone Premium Bronze 80 grit
Poltava Expert Pro Diamond Stone (Resin Bond) 1″ x 6″ mix grit
KDTU CBN Stones Hybrid Normal – 100 Grit
2. Coarse sharpening — edge shaping
Tool: 160-225 grit abrasive (CBN, diamond). Here a new bevel is formed and the angle is set. It is very important to achieve a uniform burr along the entire length.
Tip from UKSG.tools: Use a system with a guide for a stable angle — such as the UKSG TRYZUB and Magnetic Sharpex, in combination with our stones. The best and fastest stone that does the job is Premium Silver.
PDT Premium Silver CBN Stone (Vitrified-Metal Bond) 1″ x 6″ – 160 Grit
3. Medium sharpening — strengthening and stabilizing
Tool: stone 240-650 grit. Here you:
eliminate risks from coarse grit;
strengthen the edge;
continue to reduce burr.
This is the most critical stage for forming a clean, aggressive cutting line. The knife is already «taking paper» but not yet «shaving».
PDT Premium Silver CBN Stone (Vitrified-Metal Bond) 1″ x 6″ – 325 Grit
PDT Premium Vitrified CBN 285 Grit
Premium Silver CBN Stone (Metal Bond) 1″ x 6″ – 550 Grit (25mm x 150mm)
4. Fine sharpening — a step towards razor sharpness
Tool: the 1100-1700 grit diamond or CBN stone, which you will find in our catalog, is ideal. Here:
residual burrs are removed;
the surface of the edge is polished;
a mirror-like shine appears on the edge.
KDTU Hybrid CBN 1100 Grit
KDTU Hybrid CBN 1500 Grit
PDT Premium Silver CBN Stone (Vitrified-Metal Bond) 1″ x 6″ – 1500 Grit
5. Polishing — optional, but beautiful
Tool: 3000-15,000 grit stone, paste on leather, paste on cast iron lapping stones. At this stage:
finish cutting aggression and resistance is achieved;
Use: leather slings, moussats or cast iron lappers (Lapping) in combination with diamond and CBN pastes. Regular dressing prolongs sharpness and reduces the frequency of full sharpening.
Additional tips
First always check the sharpening angle of the knife. Japanese knives are sharpened at a sharper angle (12–15°), while European knives are sharpened at 20°.
Don’t jump over a lot of grain. For example, going straight to 3000 after 400 is a bad idea.
Regularly adjust the knife on a honing rod or leather belt — this extends the interval between full sharpening.
Watch for symmetry — especially if you’re working by hand. An edge that is not symmetrical will quickly lose its shape.
If you are unsure of your hand. Use the UKSG Magnetic Sharpex or UKSG Tryzub Sharpener — we have them in stock with adapters to fit all blades.
CBN stones for guided sharpening systems — buy from UKSG.tools
CBN (cubic boron nitride) stones for guided sharpening systems — the ideal solution for those who value a stable angle, high speed of metal removal, durability and high level of polish.
In the UKSG.tools catalog you will find a wide range of CBN stones with the following bond types:
Resin bond,
Metal bond,
Hybrid,
Electroplated / nickel (diamond plates),
Vitrified Bond,
Silver (Metal – Vitrified)
Our sharpening stones are compatible with UKSG, Apex, Blitz, TSProf, Kadet, Profile, HAPSTONE, EdgePro and others.
Our selection includes:
CBN & Diamond stones from 60 to 15,000 grit, bonded stones on aluminum blanks — have consistent quality and are durable.
Standard sizes: 3″×8″ (200×70 mm), 1″×6″ (150×25 mm), 0,5″×6″ (12×150mm)
Professional series for hard steel (HRC 71+)
Sets of 4/6/8 stones.
Suitable for sharpening: kitchen knives (including Japanese knives), «bushcraft», «outdoors», «hunting» knives and EDC knives, carpentry tools, scissors, cutters, chisels, chisels.
Why buy from us:
Help in matching CBN stones to your system
Fast delivery in Europe, USA, Canada, UK
Advice from sharpening experts
Discounts and bonuses for regular customers.
UKSG.tools — precision in detail, because cutting tools deserve more than just sharpening, they deserve respect.
Oleksandr Doroshenko
Oleksandr Doroshenko is the leader and principal expert at UKSG Tools, a Ukrainian manufacturer of specialized sharpening and grinding instruments. Under his leadership, the company focuses on high-precision solutions using diamond and CBN abrasives, blending advanced technologies with the craftsmanship of the country’s finest domestic producers.
