07-29-2015, 09:36 PM
Found a website (but lost the link) that had a calculator to give the drill sizes and depths to step drill the hole before reaming. On the smaller ones like this not so important. Had to do some tapered pins on a piece off a drilling rig a while back, Alfie bought the reamer it was about 3/4 inch dia at the big end. That one took some push to get it to cut.
Free advice is worth exactly what you payed for it.
Greg
Greg