Best knife sharpening in Santa Monica shows how to sharpen a knife

First you need to make sure that the knives are straight and determine if they have chips or other damages. You also need to check if the edge bevel is correct for the knife, all this need to be corrected before sharpening could begin. Straighten and do all repairs, for repairs I recommend a really coarse DMT plate wish makes it fast and easy, and for rebevelling something in the 500# grit range depending on how hard the steel is.

Before starting the sharpening, prepare the stones and make sure they are flat and have them soak if needed. Find the right bevel angle check my post about “What edge angle to use on different knives” for a general idea what angle to use. For an easy way to find the angle is to measure the height of the blade at the heel, let say that your knife is 2” high at the heel as the knife in the picture bellow.

best knife sharpening in Pacific Palisades measuring knife blade height at heel

Measuring knife blade height at heel

In this case you could just divide the height of the blade, to get an estimate height that you need to hold the spine above the stone. Bellow I have a large heavy duty knife of bad quality so I decided to give it an dull edge angle of 30°. I divided the height of my blade with 2 and that tells me that I have to hold the spine one inch above the stone, see picture bellow.

best knife sharpening in Brentwood measuring knife spine distance from stone

Measuring knife spine distance from stone

Here is a table of rough estimate of values to divide the blade height with for different angles.

For 30° divide by 2

For 24° divide by 2.5

For 20° divide by 3

For 15° divide by 4

For 12° divide by 5

When you have fixed everything you need and the angle is right you could start sharpening. I usually start with a coarse stone 700# grit till I get a smoth straight edge with a burr, and continue with a medium stone in the 1000# – 2000# grit range making sure that I keep it tight and have a light burr. I usually holding the knife diagonal over the stone to avoid wobbling, see picture bellow.

best knife sharpening in Los Angeles Hand sharpening knife diagonally to avoid wobbling

Santa Monica hand sharpening knife diagonally to avoid wobbling

After this I deburr with some light edge trailing strokes on both sides, and a few strokes on a cork or a piece of wood, before moving on to the finishing stones. See pictures bellow.

best knife sharpening in Santa Monica using edge tailing strokes on fine sharpening stone to deburr

Edge tailing strokes on fine sharpening stone to deburr

best knife sharpening in Venice carlifornia deburring knife edge on cork

Deburring knife edge on cork

I usually start the finishing work with a fine stone in the 4000# – 6000# grit range and using lighter and lighter pressure, this stage it’s a lot about feel and sound and if the ground work is done on coarser stones 10-20 strokes per side should be enough. This should be enough for most ordinary kitchen knives, just deburr on a cork. At this stage you should be able to shave with the knife with a little bit of pressure.

If you want you could continue with super fine stones all up to the 30k# grit, but I most often only use a 8k# and 12k# stone to get that shiny finish. Of course you could continue even more, with lapping films and strops with different dressings until you get that dark deep mirror finish.  On my own knives I usually do it in this order, depending of what knife it is.

Fast sharpening: 2000#, 6000# and leather strop with blue magic. For a more over excessive way: 320# DMT, 500# Bester, 1000# Sigma, 2000# Bester great feel, 2000# more like a  4000# Unknown brand, 6000# Nubatama, 8000# Kitayama, 12k# Shapton, Balsa with polishing cream, Leather strop with Autosol or Mothers and finally horse butt leather strop without dressing.

Things to remember

  1. Make sure stones are flat and clean.
  2. Don’t use to much pressure, let the stones do the work.
  3. Avoid doing it to fast, so you don’t wobble.
  4. try your best to keep the angle, after a while it will come naturally.

 

Magnus Pettersson hand sharpener, now serving the whole Westside with free pickup and delivery: Santa Monica, Brentwood, Pacific Palisades, Venice, Marina Del Rey, Culver City and West LA.

For free pickup and delivery on the Westside, call/txt 310-486-6068 or email.




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What edge angle to use on different knives

What edge angles to use is really subjective, because it is really a matter of personal preferences. The steeper angle the sharper edge, but it will also be more fragile. There is a few other things to take in to consideration though; how will the knife be used, the quality of the steel and blade thickness.

Western kitchen knives are traditionally of softer steel and take an edge angle of 19–23°, while Japanese kitchen knives are traditionally of harder steel and take an edge angle of 13–18°

Here are some rough guide lines, for what edge angle to use:

Thin flexible high quality slicing knives; thin fillet knives and roaster slicers that seldom touches the cutting board 13°

Thin high quality kitchen knives, that gets light use like slicing fish, meat and tomatoes and that needs to be extremely sharp 15°

Medium and heavy duty kitchen knives 18°- 23°

Very thick blades like cleavers 25°- 30°

Small thin pocket knives 20°

Medium pocket knives 23°

Big thick pocket knives 25°

Thin hunting knives 20°

Hunting knives 23°

Heavy duty hunting, camping and utility knives 25°- 30°

Magnus Pettersson hand sharpener, now serving the whole Westside with free pickup and delivery: Santa Monica, Brentwood, Pacific Palisades, Venice, Marina Del Rey, Culver City and West LA.

For free pickup and delivery on the Westside, call/txt 310-486-6068 or email.



Fixing reverse bow edge and sharpening a Global knife

Reverse bow edge on Global knife

Reverse bow edge

As you see in the image of the knife, the edge just make contact at heal and tip, with a big gap between the surface and the edge in the middle. This is a common damage for knives that has been sharpened on small electrical counter machines. The easiest way to fix this is to grind the edge down till it makes contact all the way on the side of a coarse sharpening stone.

The bow edge is know fixed and in contact with the whole edge

The bow edge is know fixed and in contact with the whole edge

This is after the edge grinding, as you see the edge makes contact with the surface all the way. Time to start to recreate the bevel, for this I used a coarse DTM (steel plate with diamond particles embedded. After that I started the sharpening on Beston #500 until I got a good burr, to follow up with a no name #1000 stone, #2000 Bester, #5000 Naniwa and finally Kitayama #8000 stone.

The edge is straight, shiny and sharp on the Global knife

The Global knife once again has its edge straight, sharp and smooth

The edge is straight, smooth and shiny, and you could see that it make contact all the way after the sharpening job.

The edge in  x15 magnification after the sharpening job

The edge in x15 magnification after the sharpening job

Well the edge doesn’t look to shiny magnified x15 in real life it looks mirror polished.

Magnus Pettersson hand sharpener, now serving the whole Westside with free pickup and delivery: Santa Monica, Brentwood, Pacific Palisades, Venice, Marina Del Rey, Culver City and West LA.

For free pickup and delivery on the Westside, call/txt 310-486-6068 or email.



Shaving cheap with straight razor

Old dirty and rusty Worcester straight razor

Old dirty and rusty Worcester straight razor

Rusty and pitted tip of a Worcester straight razor

Rusty and pitted tip of a Worcester straight razor

This is an old Worcester Razor that I bought for $5, as you see it has been seeing better days. It’s dirty pitted, with some heavy dark rust spots to the front, but it is of good quality and will make a good shaver. The goal is to just getting it cleaned up a little, and in shaving shape fast and easy.

Sanding of Worcester Straight razor with 400 grit sandpaper

Sanding of Worcester Straight razor with 400 grit sandpaper

First a I got rid of the heavy rust with #220 and #400 grit sandpaper, after that I continued with #800, #1000, #1500 and #2000 just to make it a little smoother and easier to keep clean.

Worcester straight razor with a light clean up

Worcester straight razor with a light clean up

This is what it looks like after the light sanding job, time to start sharpening.
I started to carefully set a new bevel with Beston #500, I don’t think this step would have been necessary if I hadn’t got to that edge with the sanding paper. After that I did the primary sharpening alternating between Bester #2000, and a Shun #6000 stone as in the table below, with lighter and lighter touch for each step.

Step           Stone           Laps
1                #2000           20
2                #6000           20
3                #2000           12
4                #6000           20
5                #2000           6
6                #6000           16
7                #2000           2
8                #6000          10

I know it doesn’t seams logical to alternate, but until I started to do it like this learning to sharpen razors, I didn’t consistently get them hair popping sharp. I’m sure there are theories why it works, but I haven’t researched it. After this I start to finish the edge with Kitayama #8000, I used to use Naniwa super stones #12000 for this, but realized that Kitayama actually were doing a better job. After this step I usually finish up with 3M lapping film on granite, with edge trailing motion and some stropping with Blue magic polishing cream on leather and on a straight horse butt strop without any dressing.

Worcester straight razor passing the hanging hair sharpening test

Worcester straight razor passing the hanging hair sharpening test

Sharpness number 5, its popping hanging hair without problem.

The Worcester razor's edge magnified after sharpening and stropping

The Worcester razor's edge magnified after sharpening and stropping

This is what the edge look like magnified, pretty good for something that might be a 100 years old. It is a good shaver, not the smoothest ever but better than acceptable. I have no idea about how good it will hold an edge, because I have just used it once, but I have a feeling it will hold up for a few shaves with just stropping. If it’s cared for, I’m sure it might give 50 more years of shaving. I think a cheap straight razor like this is a great choice for someone just starting out using straights. You would never again have to go out and pay an arm and a leg for Gillette fusion, and you would be good to the environment recycling a piece of history not to mention how manly it makes you feel using a straight razor. I’m Swedish, so my preferences when it comes to vintage straight razors, is Swedish straight razors, and I try to pick up cheap ones as soon as I have an opportunity.

Magnus Pettersson hand sharpener, now serving the whole Westside with free pickup and delivery: Santa Monica, Brentwood, Pacific Palisades, Venice, Marina Del Rey, Culver City and West LA.

For free pickup and delivery on the Westside, call/txt 310-486-6068 or email.