Square tooth sharpening

[Mick Dempsey]

Nothing to lose Dan.

[handcutter]

19 hours ago, Dan Maynard said:

Reckon I'll try on my 372, only 18" bar so not many teeth.

Give it a go it’s not hard to convert a standard chain 

[Wonky]

I don’t think that’s  Square filing.   that  looks abit more like stihl's hexa.

 

t

[Rob D]

Hi Mick - is that .325 chain?

 

I spent 3 hours trying to square file 325 chain [it was a few years ago] but I'm not sure it's possible - the angle you have to hold the file means you hit the top of the chain tie straps or there is something that blocks it. I had same shape as you got.

 

It should look more like below - more right angled.

 

Cracking vid here - and mega expensive files here if you're still keen! But I think you need 3/8 or .404 to get a true result.

 

 

Flat files - Chainsawbars

WWW.CHAINSAWBARS.CO.UK

---

Click here to go back to the chain sharpening tools menu

 

 

 

 

[Mick Dempsey]

Hi Rob, thanks for chiming in.

It’s a 550 standard bar and chain.

On the larger (longer/less used) teeth it’s hard to fit this file between the raker and the tooth.

I know it’s not right, it’s not even the right file, but it really does cut fast.

Did the 560 the other day, impressive cutting from that as well.

I will look at the vid later, after the cup semi final.

Edited April 22, 2023 by Mick Dempsey

[Stubby]

You should be able to file a round ground 3/8th or .404 full chiz into a square ground  with the files .

Edited April 22, 2023 by Stubby

[5thelement]

2 hours ago, Mick Dempsey said:

Hi Rob, thanks for chiming in.

It’s a 550 standard bar and chain.

On the larger (longer/less used) teeth it’s hard to fit this file between the raker and the tooth.

I know it’s not right, it’s not even the right file, but it really does cut fast.

Did the 560 the other day, impressive cutting from that as well.

I will look at the vid later, after the cup semi final.

I’ll bring my own saws in on Monday Mick. 😂

[lurch_917]

can  i take it that this is only going to be any good on full chisel chain ?

 

[dan blocker]

Are you creating a right angle sharp edge? If so the more you sharpen it you create a possible fracture line and break the top of the cutter off? Especially in hard wood. Just my small brain thinking out loud🙄

[Mick Dempsey]

9 hours ago, dan blocker said:

Are you creating a right angle sharp edge? If so the more you sharpen it you create a possible fracture line and break the top of the cutter off? Especially in hard wood. Just my small brain thinking out loud🙄

Yes, that will deffo happen as it moves back along the tooth.

I don’t think this has legs, just found it interesting that you can get a very acceptable chain without following the proscribed methods.

Once these chains are finished I’ll go back to conventional methods I think.