G550 Series CARBIDE ENDMILLS - Long Neck Square 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, Copper, FRP, etc. . Toughness and reduction of vibration. . Available in various cut lengths. . Suitable for deep cutting application. Dia. CL EFF-L OAL Shank Flutes Order No. (d) (L1) (L2) (L) (D) (F) EPSBC4 EPSRC403010U 3.0 3.0 10 50 6 4 EPSRC4 EPSRC403012U 3.0 3.0 12 50 6 4 EPSRC403016U 3.0 3.0 16 50 6 4 EPSRC403020U 3.0 3.0 20 60 6 4 EPSRC403025U 3.0 3.0 25 60 6 4 EPSRC403030U 3.0 3.0 30 60 6 4 EPSRC403035U 3.0 3.0 35 75 6 4 EPSRC404010U 4.0 4.0 10 50 6 4 d EPSRC404012U 4.0 4.0 12 50 6 4 EPSRC404016U 4.0 4.0 16 50 6 4 EPSRC404020U 4.0 4.0 20 60 6 4 L1 EPSRC404025U 4.0 4.0 25 60 6 4 EPSRC404030U 4.0 4.0 30 60 6 4 EPSRC405016U 5.0 5.0 16 50 6 4 L2 EPSRC405020U 5.0 5.0 20 60 6 4 EPSRC405025U 5.0 5.0 25 60 6 4 EPSRC405030U 5.0 5.0 30 60 6 4 EPSRC406020U 6.0 6.0 20 60 6 4 EPSRC406030U 6.0 6.0 30 75 6 4 EPSRC408020U 8.0 15.0 20 60 8 4 L EPSRC408030U 8.0 15.0 30 75 8 4 15° EPSRC408040U 8.0 15.0 40 100 8 4 EPSRC410025U 10.0 20.0 25 75 10 4 EPSRC410035U 10.0 20.0 35 100 10 4 EPSRC410045U 10.0 20.0 45 100 10 4 EPSRC412030U 12.0 25.0 30 75 12 4 EPSRC412040U 12.0 25.0 40 100 12 4 EPSRC412050U 12.0 25.0 50 100 12 4 WORKING ALLOY STEEL ALLOY STEEL HARDENED MATERIAL / TOOL STEEL / TOOL STEEL STEEL D CODE 45C, S50C, SCM SCM, SKT, SKD SKT, SKD HARDNESS HRC < 30 HRC 20 ~ 30 HRC 40 ~ 50 FEED FEED FEED DIAMETER R.P.M (mm/min) R.P.M (mm/min) R.P.M (mm/min) 0.8MM 21,000 950 21,500 640 17,200 450 1.0MM 19,800 900 20,500 620 16,200 440 1.2MM 17,200 1,000 15,200 700 12,000 500 1.5MM 14,800 1,100 13,300 740 10,400 570 2.0MM 14,300 1,500 11,900 1,000 9,500 760 2.5MM 10,000 800 7,600 680 6,000 480 3.0MM 8,600 820 6,800 710 5,200 500 4.0MM 7,000 940 4,700 720 3,900 500 5.0MM 5,000 850 3,900 650 3,100 460 6.0MM 3,700 760 3, 100 680 2,400 480 8.0MM 3,500 800 2,900 690 2,400 490 30° 10.0MM 2,700 820 2,500 700 2,100 490 12.0MM 2,300 790 2, 100 730 1,700 490 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. A45