3.5ft or 4ft tuttle tooth one man saw. I've gotten into saws myself lately. I've got one like I just mentioned I've got to refurbish, if I ever get around to it I'll give you a call, but look around, its a very common tooth type. More common than lance I've found. Make sure it's got all the teeth. Learning to sharpen is tricky, don't compound that with learning to create new teeth.