The chamfer cutter can be used with or without a ball bearing. It can be used for both plastic and solid wood edges. The cutter is supplied with a sturdy steel ball bearing. Chamfer cutter 45° for edge trimming. optimised bearing mount suitable for 12.7 mm ball bearing guide or no ball bearing guide. for OF 1010, OF 1010 R, OFK 700, MFK 700, MFKC 700