Bunch of random pics of cutters

[HumBurner]

To me cleaning the gullet results:
- easier & faster touchup grinds
- easier touch up in the field with a round file
- theory of more space for the chips
- looks much prettier
- may or may not help in cutting performance

Increases available cutting surface area allowing the cutter to take a larger bite with each pass IF the depth gauge is set for it.

One could argue a larger bite somewhat reduces overall chain speed, but not that I've ever noticed. I also don't cut cookies or time with a stopwatch.

 

[Wilhelm]

Brand new Husqvarna X-Cut C85 , 3/8" .058" 56DL

 

[pbillyi69]

Did a little test today for those always saying “get the gullet“. Not so popular here, but more so in the Facebook groups. I’ve been saying for years that the angle on the top half of the side of the cutter is what matters for most firewood size pieces (16-20” bar), and today I tried my best to prove myself wrong.

The chain I posted a few posts up^^… I ran it like it is in those photos and then came back in and ran the lower gullet area through the grinder and went back out and made more cuts adjacent to the old ones. No difference that I could tell, or at least it’s not measurable and plenty within my margin of error. I suppose a stack of 12-16” cants 4’ high might make a little difference, but we don’t cut many of those for firewood. The chain isn’t all that different from before other than it’s cleaned out down to the straps now. It’s nothing fancy. Just wanted to learn whether or not it makes enough difference to worry about on your firewood chains. If I were cutting 36” logs, I’d probably do a little extra filing for added chip clearance.

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the only time i have ever noticed the gullet being in the way is in big wood with the bar buried and the gullets being really long. unless the tooth is ground way back and the corner of the gullet stick out further than the corner of the cutter i dont notice it much in small wood. on square ground chain. on round ground chain it gets filed enough to almose never notice

 

[huskihl]

the only time i have ever noticed the gullet being in the way is in big wood with the bar buried and the gullets being really long. unless the tooth is ground way back and the corner of the gullet stick out further than the corner of the cutter i dont notice it much in small wood. on square ground chain. on round ground chain it gets filed enough to almose never notice

Exactly. That was my point. Guys running a 20” bar and being told to get the gullet. The problem is, they get the gullet so much that they forget about the part that matters up top.

 

[HumBurner]

Exactly. That was my point. Guys running a 20” bar and being told to get the gullet. The problem is, they get the gullet so much that they forget about the part that matters up top.

With a Granberg, you can get any height/depth you want, as well as using different sized files to fine-tune and tailor however one wants.

 

[pbillyi69]

Exactly. That was my point. Guys running a 20” bar and being told to get the gullet. The problem is, they get the gullet so much that they forget about the part that matters up top.

thats because you are a smart fella. i am glad there are people like you on here that share their knowledge freely.

 

[Wilhelm]

Another drill bit grind just for the fun of it, 17.0mm HSS-Co

 

[Partner]

Better already a bit too thick a stone

 

[dik650]

What should move chips better?
A sharp edge, or a blunt edge?
I believe the latter on account of less cutting & more pushing.
"If your chain can still open up a missed face cut, your gullets are fine."

 

[Wilhelm]

Better already a bit too thick a stone

Nah, stone is good at 20mm width.
It is just the idiots utilizing a grinding stone as a cutoff wheel that bothers me.
This was the grinding stone today, I had to dress it to sharpen the above drill bit.

 

[Partner]

I was referring to the grain or gradations of the stone

 

[Wilhelm]

I was referring to the grain or gradations of the stone

Fine and coarse then!
Again, the white semi coarse grinding wheel is actually about perfect for alloyed steel, any finer grain and it would take too long to get any material removed.
Also, if I wanted or needed to get this same wheel finer I just need to hold a worn down wheel against it while it spins and it will plug up giving a finer grind.

I tried polishing ground/sharpened HSS drill bits, it has no positive effect!

 

[Partner]

Well, rightly so, everything depends on how worn the drill is, some are even damaged and it is necessary to shorten it

 

[Wilhelm]

Did anyone ever try grinding their chains with a wheel dressed square?
And I am not talking "square ground"!
That is a brand new Husqvarna X-Cut C85 tooth/chain.
I will be trying this!
Less hook, but more durable cutter?!

 

[davidwyby]

@Wilhelm hexa

 

[HumBurner]

Did anyone ever try grinding their chains with a wheel dressed square?
And I am not talking "square ground"!
That is a brand new Husqvarna X-Cut C85 tooth/chain.
I will be trying this!
Less hook, but more durable cutter?!

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Do you have a photo of the inner profile?

My guess is it may be a bit grabby and/or the depths will need slight adjusting to accommodate the depth it's ground in.

Pretty impressive how you kept the TPA the way you did.

 

[Wilhelm]

Brand new Husqvarna X-Cut C85 , 3/8" .058" 56DL

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@HumBurner , for now it is still a factory ground X-Cut as shown on one of my previous posts.
I was merely getting a look how the square wheel edge would seat into the cutter.
I may give it a try on a Vanguard or other full chisel chain.

 

[Wilhelm]

Do you have a photo of the inner profile?

My guess is it may be a bit grabby and/or the depths will need slight adjusting to accommodate the depth it's ground in.

Pretty impressive how you kept the TPA the way you did.

Pardon my stupidity, what does TPA stand for?
Thanks

 

[Squareground3691]

Pardon my stupidity, what does TPA stand for?
Thanks

Top Plate Angle , assuming

 

[Wilhelm]

Top Plate Angle , assuming

Cool, thanks.