This is a nice, old pipe burring reamer with straight flutes, marked "ANDER... NO. 7(measures 3/16-3/4" diameter on the flutes). The included angle is about 10 degrees. This type is design to fit a brace, and there is some wear noted on the tapered end to fit in the brace, but useable. There is also some minor wear on the flutes noted at about the 1/2 diameter area, not bad, will still cut, but not 100% in that area. The rest is in good+ condition. An unusual taper!