GROOVING / CUTTING OFF Notes on multi-functional machining (BM breaker) Copying Roughing APMX aWith the BM breaker insert, 3 dimensional copying is possible. aUse plunging and cross-feed machining. Set the depth of cut (APMX) to 40% less than the insert width. When machining the corner, vibration is likely to occur. To avoid this, reduce the feed by 50%. Finishing Insert APMX2 (inch) GY2M0200D100N-BM .002 GY2M0250E125N-BM .004 F GY2M0300F150N-BMGY2M0318F159N-BM .006 GY2M0400G200N-BM .008 APMX2 GY2M0475H238N-BMGY2M0500H250N-BM .009 aCarry out finishing in one process.For the depth of cut (APMX2) when back turning, refer to the table on theright.GY2M0600J150N-BMGY2M0635J318N-BMGY2M0800K400N-BM.012.016 F213