In school we used a thick HSS round nosed scraper.I never measured it , but i think it was every bit of an 1 1/2" wide.It also had a smaller diameter turning on the last 3 or so inches [of the handle].Because it was so thick, it wasn't so prone to chatter and catches.I'm trying to avoid Sorby priced tools at this time ,so lets put that in the equation as well. thanks rob