If a dog will not come to you after having looked you in the face, you should go home and examine your conscience.Woodrow Wilson
The subject of how to use the face of your sharpening stone is so basic and seems so unimportant that few give it the attention it warrants. But it is not trivial: it deserves its own post because it can truly make a big difference in the time and money you spend sharpening.
Money Down the Drain
Instead of focusing his attention on the blade alone, a wise man will make a conscious effort to use the entire face of his sharpening stone from edge to edge, end to end, and corner to corner instead of digging an oval swamp in the center of it’s poor abused face.
This habit will help to keep a stone’s faces flatter over more strokes longer, saving time truing the stone, and extending its life thereby saving money.
Remember that you paid money for the stone, the entire stone, not just the hollowed-out oval area in the center most people create when carelessly sharpening. How much of a stone do most people throw away? Idunno,… 20%? If you paid $100 dollars for the stone, that means $20 was turned into mud and washed away without providing any benefit at all. And don’t forget the time you spent cutting down those high spots to keep the stone’s face flat. That makes it more than a $20 loss if you count your time worth anything, which you should.
Why not use the sides and ends of the stone too?
Developing Good Habits
When developing these intelligent work habits, use a carpenter’s pencil to cross-hatch the stone’s surface to help you keep track of the areas you have not yet touched. Industrial diamonds are made from graphite, it’s true, but pencil lead is still softer than the finest sharpening stone and won’t affect the sharpening process.
Also, before and while sharpening, frequently use a thin stainless steel ruler to check the stone’s face lengthwise and crosswise at various locations, and of course on the diagonals to monitor wear. Don’t guess, lazy bones, examine. Between ruler and pencil you may discover you have developed less-than-efficient sharpening habits. With some thought you will also figure out how to change those habits so your sharpening efforts will be quicker and more cost-effective.
Before long, you will be able to detect uneven wear and warpage fairly reliably without using either tool as much, so stick with it until you do.
One conundrum you have probably already discovered is that it is impractical to use the extreme right and left sides and both ends of the stone’s face to sharpen a blade. Or is it?
Here is wisdom: Teach yourself how to sharpen with one corner of the blade hanging off the stone part of the time, alternating between right and left corners, of course. Strange as it may seem this technique is effective at not only keeping your sharpening stone flatter, but for keeping the cutting edges of your blades straighter. If this doesn’t make sense to you, think about it real hard. Then give it a try and you will see what I mean.
And since you are taking short strokes anyway, why not work the blade crosswise at the ends of the stone? A lot of expensive stone going to waste there.
I hate to sound like a broken record, but you will find that making short strokes will make it much easier to use the entire face of the stone.
If you feel this post needlessly states the obvious, or is “verbose,” allow me to remind Gentle Reader once again that the purpose of this blog is not to provide entertainment, sell stuff, troll for clicks or roll subscribers into Google Analytics’ Pit of Hell, but to help our Beloved Customers develop good work habits through education. Some of them are newbies, and others are old hands, but if I were to write only for the professionals then I would be neglecting the newbies, so if you know this stuff already please congratulate yourself and celebrate your good fortune by buying a new carpenter’s pencil.
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Other Posts in the Sharpening Series
- Sharpening Japanese Woodworking Tools Part 1
- Sharpening Part 2 – The Journey
- Sharpening Part 3 – Philosophy
- Sharpening Part 4 – ‘Nando and the Sword Sharpener
- Sharpening Part 5 – The Sharp Edge
- Sharpening Part 6 – The Mystery of Steel
- Sharpening Part 7 – The Alchemy of Hard Steel 鋼
- Sharpening Part 8 – Soft Iron 地金
- Sharpening Part 9 – Hard Steel & Soft Iron 鍛接
- Sharpening Part 10 – The Ura 浦
- Sharpening Part 11 – Supernatural Bevel Angles
- Sharpening Part 12 – Skewampus Blades, Curved Cutting Edges, and Monkeyshines
- Sharpening Part 13 – Nitty Gritty
- Sharpening Part 14 – Natural Sharpening Stones
- Sharpening Part 15 – The Most Important Stone
- Sharpening Part 16 – Pixie Dust
- Sharpening Part 17 – Gear
- Sharpening Part 18 – The Nagura Stone
- Sharpening Part 19 – Maintaining Sharpening Stones
- Sharpening Part 20 – Flattening and Polishing the Ura
- Sharpening Part 21 – The Bulging Bevel
- Sharpening Part 22 – The Double-bevel Blues
- Sharpening Part 23 – Stance & Grip
- Sharpening Part 24 – Sharpening Direction
- Sharpening Part 25 – Short Strokes
- Sharpening Part 26 – The Taming of the Skew
- Sharpening Part 27 – The Entire Face
- Sharpening Part 28 – The Minuscule Burr
- Sharpening Part 29 – An Example
- Sharpening Part 30 – Uradashi & Uraoshi