square chisel
Russ,
I take the teeth back to rivet only when asked, I would have to say they cut the fastest when the tooth is shorter. As to the time it takes, ask my wife, whose always complaining that I'm down stairs.
Square grinding takes me about twenty minutes or more a side, depending on how much I'm removing from each tooth on the square grinder. Then I dress both angles of the stone when I start, and then again when I switch sides. It may have to be done more than that, if the chain has teeth that are rocked. I always start with the shortest tooth , measured with a dial caliper, and go from there. When I grind my own chain that just needs to be touched up, it may only take me ten minutes a side. If I'm grinding chain for a guy half way across the country, I take my time, the last thing I want to do is go into the back of the tie straps, or worse, on someone elses chain. touching the ties as you may know, is no big deal, but i'll only do it on my own chain. The tyme spent on the 308 is longer, depending on how far your taking the tooth back, another half hour to hour here, again you don't want to over heat the tooth. Then probably another half hour for the rakers...measuring...checking , grinding, measuring again and so on, till your happy with the hight.
I would never call any chain that came off my grinder, race chain. Just fast woods chain
Steve
Please feel free to email me with questions