GROOVE-TURN UMGR Miniature Indexable Inserts 3° for Internal Turning f 7° R W Right-hand shown Dimensions IC508 Designation W±0.02 R±0.02 f D min UMGR 4.0-0.0 1.63 0.00 2.2 4.00 • UMGR 4.0-0.1 1.63 0.10 1.6 0.10 • For tools, see pages: MGUHR (327) f UMGR-A55 0.8 Mini Indexable Inserts for Threading 0.1 55° Whitworth, Partial Profile in 5.2 mm and Larger Holes Right-hand shown Dimensions IC508 Designation f TPI max TPI min Pmin Pmax D min UMGR 4.0-A55 2.7 48 18 0.50 1.40 5.20 • For tools, see pages: MGUHR (327) f UMGR-A60 60° 0.8 Mini Indexable Inserts for 0.1 Threading 60° Partial Profile in 5.2 mm and Larger Holes Right-hand shown Dimensions IC508 Designation f D min Pmin Pmax UMGR 4.0-A60 2.7 5.20 0.50 1.25 • For tools, see pages: MGUHR (327) 328 ISCAR