- Aug 26, 2013
I thought I would share this bit I finished up last night. I usually use inserts these days, but I broke out this old bit ground for aluminum as I need to turn some nylon this evening. it has about 10° of front and side clearance, 15° of side rake, and about 35° of back rake. I touched up the old grind on the bench grinder, and then honed it on some cheap diamond hones.