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.325" square

Four Paws

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I wanted to talk specifically about .325" square chain. I think I remember reading or hearing from someone that .325" chain ground/filed square really wakes up. I am interested in learning more as I have never been really impressed with .325" chain in any make or model.
 

Sierrawoodsman

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I tried .325" square and now it's all I use. On my 550. Are you going to be using a file or do you have a square grinder?


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Magic_Man

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So I assume nobody manufactures square .325 and you have to grind/file your own ? Would you use the same file as 3/8 ?
 

Cut4fun

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So I assume nobody manufactures square .325 and you have to grind/file your own ? Would you use the same file as 3/8 ?

None I know of. Yes if hand filing.

Had a friend that filed a 325 RS and replaced a RM chain and was 50% faster.

Jon made a RS square and Randy said it was 38% faster then stock RS.
 

Canadian farm boy

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Here my attempt at .325 square. I've got some side beak and the DG are a touch low but wow does it ever cut fast. Started with 23rs67. I used a triangular file to convert the chain to square. I didn't really like the triangular file. I've got a couple double bevel files now to try. I don't know an exactly how much faster this chain was compared to round but in 10" red oak I was close to 2 cuts to my buddies 1.image.jpg
 

RCBS

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None I know of. Yes if hand filing.

Had a friend that filed a 325 RS and replaced a RM chain and was 50% faster.

Jon made a RS square and Randy said it was 38% faster then stock RS.

I think I have an 18" loop of .325x.050 Husqvarna branded square grind somewhere. Will try to get a pic & PN. I think it's still in the box. Never used because I don't have a file for it. Bought on accident at Paul Bunyan show a couple years ago. I had two of them and just hogged the one I used out with a round file I think.
 

Philbert

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Square chain is just full-chisel chain that is ground or filed differently.

Some is available from the factory as square ground. Some people take round ground full-chisel chain and grind or file it square.

That might account for some of the types you have heard about, even if you don't see it in the catalogs.

Philbert
 

mdavlee

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I have no clue. I've only bought maybe 5 loops of .325" in 15 years.
 

Brian Simonseth

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I think Carlton did at one time; I have a loop for one of my MS 250 that is a skip chain .325x063 square
 

Cut4fun

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I just round filed a square chain back yesterday on a PS. Just like a normal touch up and round she was again.

I liked to see this oregon 325 square and see if it was a 33LG round that was square CL back then. Thanks for info on this.
 

Hedgerow

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Maybe it's not lpx??
Now I gotta go see what the other loop looks like..
 

Hedgerow

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Ok..
Bumpers are different shape on the new chain..
But still the cutters are stamped 25 just like the old one..
What gives??
 

Philbert

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The '25' just means that the recommended depth gauge offset is 0.025". It is not a model number. It is on lots of different cutters.

Philbert
 

Hedgerow

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Then what the heck do I have here???
Help philbert!!
 
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