Knife sharpening

rogerthebodger

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Sandro

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As I see here many knowing about sharpening, I have a question.

I inherited from my father in law a few oil stones, all embedded in wooden holders, that I use for shrpening woodworking tools, kitchen knifes and boat knife.
The problem is they all are not flat, but worn hollow in the central area. For planes and chisels the stone needs to be plane.
My question: is there some way of flattening them? Which could be the grinding agent? Rubbing two of them one against the other?

All advises welcome.
 

Daydream believer

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My joiners used to put a piece of wood about 3/8 inch at each end of the stone in the block. This was so they could use the full length of the stone & run off the end without damaging the edge of the tool. That allowed them to get a longer stroke & more even wear on the stone
 

Halo

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As I see here many knowing about sharpening, I have a question.

I inherited from my father in law a few oil stones, all embedded in wooden holders, that I use for shrpening woodworking tools, kitchen knifes and boat knife.
The problem is they all are not flat, but worn hollow in the central area. For planes and chisels the stone needs to be plane.
My question: is there some way of flattening them? Which could be the grinding agent? Rubbing two of them one against the other?

All advises welcome.
Oil stones go hollow with use. That’s why it’s better to use wet and dry on a glass base as per my previous post. My advice is your oil stones are interesting historical objects that you should retain for posterity or chuck in the bin. There is a better way
 

B27

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I think it's those 'honing guide' things with one wheel/roller which encourage people to wear a trough down the middle of the stone?
A skilled bloke will sharpen tools by hand and use the stone evenly.
I'm not skilled though!

You can re-face a stone on a concrete paving slab allegedly.

I have a little electric wet sharpener.
 

Gsailor

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Just to be clear, carrying a knife in public in Scotland is an offence.

My brother habitually comes north of the border with his Swiss army knife in his pocket. I repeatedly advise him against this.

One day he'll take it out of his pocket to find some change in a shop or something and he'll get more than a gentle reminder from PC Murdoch.
I thought we had it tough in England (no fixed or locking blades over 1 inch) - penknives are allowed IIRC.
 

penberth3

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I think it's those 'honing guide' things with one wheel/roller which encourage people to wear a trough down the middle of the stone?

You can re-face a stone on a concrete paving slab allegedly........

Yes you can, concrete or masonry, if the sharpening stone isn't too hard. A bit of sand helps as a grinding medium
 

Gsailor

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What is the difference between oil stones and wet stones?

I started using wet stones because they required less mess to clear up.

This was supposed to be a reply to post 52

Returning to my reply, I realise it is not specific to post 52 (apologies), it was a general enquiry.
 

penberth3

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What is the difference between oil stones and wet stones?

I started using wet stones because they required less mess to clear up.

Ah, it's got confusing. The word is actually whet stone, often used with water, can be used dry. Oil stones can be natural stone or manufactured e.g. "Carborundum". There are also "water stones", to be used with water. I hope that's clear.
 

Gsailor

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Ah, it's got confusing. The word is actually whet stone, often used with water, can be used dry. Oil stones can be natural stone or manufactured e.g. "Carborundum". There are also "water stones", to be used with water. I hope that's clear.
No! I know you posted that to be not clear!

I apologise for my mis-use of “wet” - I blame ignorance, not my teachers.

In seriousness, I did not know they could be used dry - live and learn.

I had a sheath knife with a ‘dry’ stone and used it as such - it developed a dip whereas whet stones did not

Yes, very confusing, but interesting.

Anyway- as you know, I am now more confused than ever - until revelation hits, I will use WHET stones with water and wet and dry paper with water - I am giving up on oil stones - too messy to clean up.

You are a teacher, thank you.😊
 

The Q

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As an occasional kilt wearer.

"When worn as part of the national dress of Scotland, the sgian-dubh is legal in Scotland, England, and Wales: in Scotland under the Criminal Law (Consolidation) (Scotland) Act 1995 s. 49(5)(c); in England and Wales under the Criminal Justice Act 1988 (s. 139) and the Offensive Weapons Act 1996 (s. 4)."

A sgian dubh is a fixed blade normally of 3.5 inch cutting length.

A pen knife maximum size is 3 inches cutting length must be folding and non locking.

A Sikh may carry his ceremonial religious sword, the recommended sizes are 14cm for a child 35cm for an adult, but there is no actual maximum size.

The above are the specific permitted carries.

However anyone can carry a blade of any length if they have a justifiable reason.
So a carpenter can carry his tools, you can buy a kitchen knife to take home, a diver or fisherman can carry a long knife. I could carry a Dirk to a formal kilted occasion, I can carry my machete outside our garden when going round the outside perimeter cutting ivy.

However if you carry anything sharp not in the above groups you are in trouble.

The recommended way of carrying sharp items is in a box / bag in the back of your car, . That's how reenactors carry weapons to shows. I carry all my modelling tools to the model railway club or the Radar museum in a tool box in the back of the Landrover..
Carrying it on your person in the front of a vehicle, where you can reach it, its a weapon

So betide the baby copper who arrests the lord lieutenant ( who is a civilian ) of a county for walking the streets of the city wearing full mufti including a sword

Meanwhile, if working on ropes etc when planned, I tend to use scalpels, just change the blade to keep a very sharp edge. . On the boat I have a UK legal multitool, which reminds me it's blades do need another sharpen.
 

fisherman

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I got my knife confiscated when going into the local court, a four inch opinel. My protests about fifty years a fishermen were ignored.

There was a piece on radio about knife crime in Glasgow. the speaker had been going into schools explaining in gory detail what happens when you stab someone, and particularly should the knife hit an artery. One child raised a hand: "So, Miss, where is it safe to stab someone?"
 

Sandro

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Thank you Binnacle. Found a lot of information that I am going to put in practice.

About knives, since a little boy I have a small folding knife in my pocket, now a three inch Opinel; I am aware that I risk some problems but I would explain them it is a tool, not a weapon, hoping they would understand.

It is amazing how often the pocket knife is needed for plenty of jobs, from slicing salami while picknicking to fasten loose spectacles tiny screws.
 

DownWest

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I may have missed it, but I use Japanese wet stones. They are relatively soft, but you can flatten them off with some carburundem paper on plate glass. I also use cheepo Lydl diamond 'stones'
We got a set of Sabatier kitchen knives (special offer from the local Carrefour market) along with wooden block, they came with a sharpener. Three graded 'v's of some diamond stuff. Not convinced, so keep the steel handy. Ace knives though!
 
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