Daiku, we bought two of the triple spur bits at the Eastern TFG conference this past fall from Timberwolf. So far, so good, although I will say that when someone on crew found a nail (what the...)in something he shouldn't have been drilling in, the steel of the bit felt pretty soft when resharpening. We're using a very small triangular file for this. We're about to do a raising in two weeks where we'll get to really put them to the test. If they really don't need a blowout block as advertised, I'll be a firm supporter.
