So I shape them to near finish. Then burn them with a butane torch, carful not to burn too much, wire brush to clean em up some. Then for these a take them on a series of sandpaper to polish up the ass ends where the wood is untouched. I put more pressure on the back ends being careful not to sand away too much of the burned bits. Then polish on a wheel with some wood compound.Burnt handles work very well in pro kitchens as they are still grippy when wet. How do you finish after being burnt? I always wire brush mine but that doesn't leave them as black as yours.