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Well I always believed the stump grinder tooth companies want to sell more product :D But no I understand the carbide on these teeth can't be too hard or they will shatter.

Yup tungsten carbide.

Lot's of dangers from breathing in carbide grinding dust also. I understand its not the carbide that's dangerous but the binding agent cobalt. I sharpen my stump grinder teeth in a sand blasting cabinet with built in gloves and the green wheel grinder mounted inside the cabinet. From what I...

No problem Jay. I see Rob started his own thread and you asked him some good questions .If their carbide is the grade my stump grinder has they can be sharpened with a green stone wheel.

Jay Jay Jay:lol: I was only suggesting to Rob that it would be nice if he could develop and introduce some conventional cutters without the carbide. With the consumer recycling mindset we have today he may have a market for it.

Thanks for your input Rob, the .375 and .404 soon to come sounds interesting. I can see a possible market for non carbide replaceable cutter sawchain that can be filed with a regular round file if the cutter's price are economical enough. 30 to 20 years ago I did sawchain field testing for...

No I haven't got a hold of Betrand yet to buy a loop of that chain Kevin. Still haven't decided whether to go to .404 yet on my bikesaw yet. I'm playing around with a few options with the 3/8. Presently in the planning stage of making a high tooth 3/8 cutter, but need a little more practice with...

Making a loop of race chain is kind of like painting, takes lots of patience and dedication. Disassembling, grinding, cutting, reassembling then filing the cutting edges with angles pertaining to the species of wood to be cut.

Yes makes me wonder too Jay. Are these guys using OEM chassis parts from Oregon or whoever or are they making their own? Tool and die making is big business and it took the 2 big saw chain companies years and millions of $ to develop this stuff. Info for Al Smith: Al, I was just on Oregon's...

Joel, thanks for posting that. Seeing it's only in 3/4" pitch it won't be practical for a hand held chainsaw, just processors etc. But it does give me some ideas, in my work shop I'm working on a project building a "high tooth" cutter design for my timbersport chains. Just modifying a factory...