G550 Series CARBIDE ENDMILLS - Long Neck Corner Radius Type - 4F . UNICO Coating provides superior wear resistance and reduces the coeffi cient of friction. . Suitable for HRC 30 to HRC 55 Ordinary Steel, Alloy Steel, Cast Iron, Heat-Resistant Steel, etc. . Multiple fl utes and ling neck design provides better surface in deep cutting. . Available in various cut lengths. Corner Dia. CL EFF-L OAL Shank Flutes Order No. Radius (d) (L1) (L2) (L) (D) (F) EPCBC4 (R) EPCRC40500130U 5.0 0.1R 5.0 30 60 6 4 EPCRC4 EPCRC40500216U 5.0 0.2R 5.0 16 60 6 4 EPCRC40500230U 5.0 0.2R 5.0 30 60 6 4 EPCRC40500316U 5.0 0.3R 5.0 16 60 6 4 EPCRC40500330U 5.0 0.3R 5.0 30 60 6 4 EPCRC40500516U 5.0 0.5R 5.0 16 60 6 4 EPCRC40500530U 5.0 0.5R 5.0 30 60 6 4 EPCRC40501016U 5.0 1.0R 5.0 16 60 6 4 d R EPCRC40501030U 5.0 1.0R 5.0 30 60 6 4 EPCRC40600120U 6.0 0.1R 7.0 20 60 6 4 EPCRC40600130U 6.0 0.1R 7.0 30 60 6 4 L1 EPCRC40600220U 6.0 0.2R 7.0 20 60 6 4 EPCRC40600230U 6.0 0.2R 7.0 30 60 6 4 EPCRC40600320U 6.0 0.3R 7.0 20 60 6 4 L2 EPCRC40600330U 6.0 0.3R 7.0 30 60 6 4 EPCRC40600520U 6.0 0.5R 7.0 20 60 6 4 EPCRC40600530U 6.0 0.5R 7.0 30 60 6 4 EPCRC40601020U 6.0 1.0R 7.0 20 60 6 4 EPCRC40601030U 6.0 1.0R 7.0 30 60 6 4 EPCRC40601520U 6.0 1.5R 7.0 20 60 6 4 L EPCRC40601530U 6.0 1.5R 7.0 30 60 6 4 15° EPCRC40800522U 8.0 0.5R 9.0 22 60 8 4 EPCRC40801022U 8.0 1.0R 9.0 22 60 8 4 EPCRC40801522U 8.0 1.5R 9.0 22 60 8 4 EPCRC40802022U 8.0 2.0R 9.0 22 60 8 4 EPCRC41000524U 10.0 0.5R 11.0 24 75 10 4 EPCRC41001024U 10.0 1.0R 11.0 24 75 10 4 EPCRC41001524U 10.0 1.5R 11.0 24 75 10 4 EPCRC41002024U 10.0 2.0R 11.0 24 75 10 4 EPCRC41200526U 12.0 0.5R 13.0 26 75 12 4 EPCRC41201026U 12.0 1.0R 13.0 26 75 12 4 EPCRC41201526U 12.0 1.5R 13.0 26 75 12 4 D EPCRC41202026U 12.0 2.0R 13.0 26 75 12 4 WORKING ALLOY STEEL HARDENED MATERIAL / TOOL STEEL STEEL CODE SCM, SKT, SKD SKT, SKD HARDNESS HRC 30 ~ 45 HRC 45 ~ 55 FEED FEED DIAMETER R.P.M (mm/min) R.P.M (mm/min) 1.0MM 11,700 1,100 10,200 910 1.5MM 9,900 1,100 9,000 1,000 2.0MM 11,000 1,100 10,200 1,020 2.5MM 9,200 1,200 8,500 1,000 3.0MM 9,600 1,800 8,900 1,800 4.0MM 7,900 1,370 6,600 1,330 6.0MM 4,900 1,470 2,900 850 8.0MM 4,000 1,600 2,400 680 10.0MM 3,200 1,750 1,900 540 12.0MM 2,500 1,800 1,500 430 d Tolerance Ø 0 ~ 0.02 D Milling Amount Ad (mm) Please refer to 3xD table, reduce R.P.M. & Feed while effi cient length is increasing. A67