Slicing knife razor-sharp grinding


The grinding of planing knives requires a good wet grinding machine in addition to manual skill. With freehand grinding, it is next to impossible to achieve a satisfying result. Depending on the degree of wear and possible damage to the blade is often sharpening or replacing the better option.

Assess grinding requirements

Since the grinding and sharpening of a planer knife in specialized companies is not very expensive and time-consuming, is worth the own grinding for the usual home use in the rarest cases. With regular planing and possibly the frequent use of other tools with blades, the purchase of a wet grinding machine can pay off.

In principle, the sharpening with two grain sizes on the electric wet grinder is sufficient to make the planer knives ready for use again. A special grinding device allows the clamping of the planer knife in the desired number of degrees. There are separate devices for planer knives and universally applicable variants, in which other straight blades can be clamped.

To create a perfect finish that allows the sharpness of a razor blade on the planer knife, a second Feinschleifgang recommended on Japanese water stones. For this purpose, a grinding aid device is again required, which allows the required and precise grinding angle.

Instructions on how to proceed when grinding a planer knife

  • Grinding wheels 800 and 4000 grit
  • Japanese water stones 800 and 8000 grit
  • Wet grinding machine such. B. Tormek
  • Grinding device for planer knife or
  • Universal grinder
  • Grinding aid on wheels like Richard Kell

1. Remove the planer blade

Dismantle the planer blade completely and remove all brackets, screws and other components until you hold the smooth iron in your hand.

2. Color chamfers

Color the chamfers, ie the bevels on the blade to be ground, on both sides with a black felt tip pen. This will show you later whether you have "caught" the entire blade course evenly.

3. Clamp and align

Clamp the planer blade according to the design of the grinding device. The appropriate degree of adjustment depends on the roughing of the planer knife, but is usually 25 degrees.

4. Fill the water tank

Fill the water tank of your wet grinder as soon as possible before use.

5. Pre-grinding

Start the machine and grind first with the coarser grit (800er). If the felt-tip dye is evenly removed, renew the dye and sand with 4000 grit.

6. Prepare waterstones

Prepare the Japanese water stones according to the instructions for use. Make sure you have a non-slip surface. The back of a car is, for example, well suited.

7. Clamp the knife in the grinding aid

Clamp the planer blade into the rollable grinding aid and set the angle about five degrees higher than with the wet grinder.

8. Fine sharpening

Evenly pull the chamfer blade chamfer first over the 800er and then over the 8000er stone.

Tips & Tricks

After grinding, do not forget to empty the water tank on your wet grinding machine again. If the water stays in the tank, the grinding wheels will suck up and develop imbalances.
Slicing knife razor-sharp grinding

FAQ - 💬

❓ Can you sharpen a knife razor sharp?

👉 2:4315:33How to Sharpen a Knife to Razor SharpnessStart of suggested clipEnd of suggested clipYou're going to want something that goes through it easily cleanly. And with not much resistance. SoMoreYou're going to want something that goes through it easily cleanly. And with not much resistance. So you get a more beautiful finish of your sushi.

❓ Should a knife be shaving sharp?

👉 Shaving Arm Hair Test The reason this test is popular by many is because a well sharpened knife will shave off all the hairs it passes over – razor sharp! A dull knife, or one that needs further sharpening, will glide over or pull at your arm hair with little to no hair removal.

❓ Why can't I get my knife shaving sharp?

👉 3:195:232 reasons why you can't get your knife sharp..Start of suggested clipEnd of suggested clipYour blade a burr formed on a coarse Stone like this you'll you'll actually be able to see with yourMoreYour blade a burr formed on a coarse Stone like this you'll you'll actually be able to see with your eye. And you'll be able to feel very easily. Just by rubbing your finger up and down either side.

❓ What grit is razor sharp?

👉 If your blade is in good shape, this is a good stone to start with. 10,000 & 12,000 Grit - This is the stone that will give you true shaving nirvana. An edge properly honed to this grit will sing through the hair, leaving only glory in its wake.

❓ What angle is a razor blade sharpened to?

👉 Under 10 Degree Angles The lowest angles that we typically see are on straight edge razors. These are sharpened to an angle that is roughly 7 to 8 degrees (although the back of the blade is used as a guide so knowing the angle isn't important and it is not adjustable).

❓ What angle are razor blades sharpened at?

👉 If properly sharpened, the 20 degree angle will work well for most knives....Knife Sharpening Angle Chart.

Type of Knife or ToolRecommended Angle
Straight Razors Razor Blades X-Acto Knives7 to 12 Degrees

❓ What is sharper than razor sharp?

👉 Actually, the proven sharpest object is freshly broken chert or obsidian. The edge has been shown to be about one molecule thick.

❓ How do you know if your razor is sharp?

👉 A quick, easy way to test the sharpness of your blade is to take a strand of hair and test it on the blade. Either hold the hair hanging down and simply tap the hair with the blade or hold the blade up right and drop the hair onto the blade. If the hair “pops” from a simple touch on the edge then your blade is sharp.

❓ Can you sharpen knives too much?

👉 It is possible to sharpen a knife too much. Each time you sharpen a blade, you are removing material from it and shortening its life span. Excessive removal is a problem if you use the wrong sharpening tool or apply too much pressure during the process.

❓ How do you make a knife razor sharp without a stone?

👉 0:053:095 Ways To Sharpen A Knife Without A Sharpener

❓ Can you get razor sharp on 1000 grit?

👉 To more directly address your question, the 1000 grit stones for the WEPS will absolutely get your knife shaving sharp, particularly once it's worn in a bit and gets a little more refined.

❓ Which is the best razor sharpener to buy?

👉 Meet RazorSharp. The most precise adjustable knife sharpener every created. Sharpen cleavers, pocket knives, kitchen knives, and more. Polish knives to perfection with dedicated polishing stones. Hone your dull scissors and shears with ease. Rubber feet prevent slips and accidents.

❓ What grit do you sharpen a knife on a stone?

👉 This will be the angle you want to hold your knife against the stone while thinning out behind the edge and creating a bevel. To start begin abrading the full length of the edge along a coarse stone (about 220-350 grit is probably fine) which is relatively flat.

❓ Can I get a refund for my razor sharpener?

👉 If you are not completely thrilled with your RazorSharp knife sharpener, simply send it back for a full refund or replacement. Meet RazorSharp. The most precise adjustable knife sharpener every created. Sharpen cleavers, pocket knives, kitchen knives, and more. Polish knives to perfection with dedicated polishing stones.

❓ How to sharpen a knife without a sharpener?

👉 To do this you must take the knife and draw it through your sharpening stone which will blunt the edge, as well as expose good steel. Hold the edge perpendicular to the stone when doing this and use very, very light pressure. This next step involves finding what angles to sharpen at if you don’t have any specific tools for doing so.


Video Board: How I sharpen my knives - Razor Sharp Edge Making System