Bender worked great! Used on 3/8, 3/4 & 7/8 copper tubing, put an 8" radius, 180 degree bend in 7/8 tubing, had small ripples on the inner radius but no kinks. The only thing I had trouble with is the inner/outer reamer, I was unable to get a smooth bevel on either the inner or outer edge of the pipe. The pipe reamer (blue tool with cutter blade) worked well. Also used to bend 1/2" EMT conduit, a little tougher but, applied pressure to tubing to help bender and it worked just fine. Would definitely recommend for a DIY job!