Stihl RS chain brand new looks like its manufacturerd with 10° Tilt you be the judge

[@nseric1233]

I think stihl went with the simplest way possible to get a sharp chain. 9/10 people can barely file a chain so skipping the 10 degree tilt is simply one less thing to screw up.

[@ChainsawUsers]

Yes think that about sums it up

[@adelarsen9776]

Interesting. Thanks.

[@patrickvennard838]

As you say 10 degrees is hard to replicate by hand but interesting to know.

[@SawChainTheories]

It's definitely done on an angle from new. There's a line that goes across from the bottom of the top plate across towards the corner that's sloping up and if you hold it up in the sunlight the grinding marks all slope up towards the corner across the side and top plate. Clearly, they don't believe we can hold a file that way. Could be worse, Oregon says to file EXL at 25 degrees but put the witness marks on the top plate at 30 degrees.

[@ChainsawUsers]

I set my FG2 file guide up with 10,° if the bottom was flat it would offiles the inside of the gullet first. It didn't file the inside first so it's ground with tilt. I will do video on FG2 with 10°

[@ChainsawUsers]

Be good to get a close up picture of those lines slopping up

[@ChainsawUsers]

​@elpolaco7654 I hear what you are saying but I think it's really bad when a manufacturer that makes a tooth profile and sells it as a premium chain and offers a round file that will destroy the pointy profile. That's why I like Stihls Hexa so much because easy to profile the grinding wheel. Stihl chains have some tilt from new on full chisel. I will show that tomorrow with my FG2 file guide with 10° tilt. If you buy a brand new full chisel chain now it most likely will have a 1mm to 1.5mm point with straight edge then curve down. You get I shot at using that chain profile then a file of chainsaw grinder will destroy the original profile unless you copy that profile on your grinder. That may go over the heads of many people. There are people who are very good with files, the drawback is that you are limited to the C shape only. Grinders are the next level providing you how to be good and wheel profiling.

[@SawChainTheories]

@@ChainsawUsers I guess the real question is, does it matter. If I get the chance on the weekend I'll try it new and see what happens if it's sharpened with the old basic kit. See if it's worse, better or the same.

[@ChainsawUsers]

@elpolaco7654 I did check with the FG2 set with 10° the file was removing metal on a new RS chain from top Inside of the tooth ( gullet ) It took 6 stokes of the file before it started to remove mental at the bottom of the slope. That means it was more than 10° If a file us held horizontal the gullet would be horizontal also. This is not the case on many new chains. It's an observation

[@ChainsawUsers]

Yes you can see the inside of the gullet is on a downward slope

[@JohnSaylock-ec4cd]

Humm. Sure might be the way they initially cut it for the fastest way to remove metal fast..... I bet they do it with two diff. Wheels. One cut does the tooth and the next cuts the gullet... That would explain the 10° down.... It's just matches the cutting wheel size they used in the gullet... Just a guess......

[@ChainsawUsers]

I was thinking the same 2 wheels. It's more of a learning curve for me. The more knowledge you gain in this area help you better better at sharpening any chain

[@JohnSaylock-ec4cd]

@@ChainsawUsers lol we're no dummies. May be someone will let us know if two is the magic number here?

[@ChainsawUsers]

@elpolaco7654 yes will do that

[@elpolaco7654]

@@ChainsawUsers If you see this comment, here is a video from a Chinese factory where they use a "USA automatic grinder machine" to sharpen the cutters. You can see one disk moving linearly and lots of liquid used for cooling. Of course, it is not impossible that sharpening can be done in several stages and more machines are used. kzbin.info/www/bejne/sIKqnWeYmstkjpI