Having 3 chamfer tools (Lyman, Redding 17-45 caliber, RCBS & Pacific Tool & Gage). I use the PTG tool 99% of the time on all cases - 22 through 50 caliber. Both Redding RCBS & PTG are advertised up to 60 caliber, both are equally about the same size, while the Lyman Redding is smaller in size.
D..