Solid Carbide Endmills G550 - Taper Neck Corner Radius Type - 2F 鎢鋼圓鼻銑刀 - 斜頸型 - 2 刃 . UNICO Coating provides superior wear resistance and reduces the coefficient of friction. . Suitable for HRC 30 to HRC 55 Ordinary Steel, Alloy Steel, Cast Iron, Heat-Resistant Steel, etc. . Various tape angle makes it suitable for different applications. . Small corner radius applied protect chipping of cutting edges. High strength of taper neck, can cut deep grooves without breaking. Corner Dia. θ˚ CL EFF-L OAL Shank Flutes Order No. Radius (d) (L1) (L2) (L) (D) (F) (R) EPCRT2 EPCRT20300525AU 3.0 0.50R 1.5° 4.5 25 75 6 2 EPCRT20301025AU 3.0 1.00R 1.5° 4.5 25 75 6 2 EPCRT20301039AU 3.0 1.00R 1.5° 4.5 39 75 6 2 EPCRT20301050AU 3.0 1.00R 1.5° 4.5 50 100 6 2 EPCRT20300535HU5C 3.0 0.50R 0.5° 5.0 35 75 6 2 EPCRT203005351U5C 3.0 0.50R 1.0° 5.0 35 75 6 2 R EPCRT20300535AU5C 3.0 0.50R 1.5° 5.0 35 75 6 2 L1 EPCRT20301035HU5C 3.0 1.00R 0.5° 5.0 35 75 6 2 EPCRT203010351U5C 3.0 1.00R 1.0° 5.0 35 75 6 2 EPCRT20301035AU5C 3.0 1.00R 1.5° 5.0 35 75 6 2 L2 EPCRT20350535HU 3.5 0.50R 0.5° 5.0 35 75 6 2 EPCRT203505351U 3.5 0.50R 1.0° 5.0 35 75 6 2 θ° EPCRT20350535AU 3.5 0.50R 1.5° 5.0 35 75 6 2 d2 EPCRT20351035HU 3.5 1.00R 0.5° 5.0 35 75 6 2 L EPCRT203510351U 3.5 1.00R 1.0° 5.0 35 75 6 2 EPCRT20351035AU 3.5 1.00R 1.5° 5.0 35 75 6 2 EPCRT20400545HU 4.0 0.50R 0.5° 6.0 45 100 6 2 EPCRT204005451U 4.0 0.50R 1.0° 6.0 45 100 6 2 EPCRT20400525AU 4.0 0.50R 1.5° 6.0 25 75 6 2 EPCRT20400545AU 4.0 0.50R 1.5° 6.0 45 100 6 2 EPCRT20401045HU 4.0 1.00R 0.5° 6.0 45 100 6 2 EPCRT204010451U 4.0 1.00R 1.0° 6.0 45 100 6 2 D EPCRT20401025AU 4.0 1.00R 1.5° 6.0 25 75 6 2 EPCRT20401045AU 4.0 1.00R 1.5° 6.0 45 100 6 2 EPCRT20501025AU 5.0 1.00R 1.5° 7.5 25 75 6 2 EPCRT20501050AU 5.0 1.00R 1.5° 7.5 50 100 8 2 EPCRT20601035AU 6.0 1.00R 1.5° 9.0 35 75 8 2 EPCRT20601050AU 6.0 1.00R 1.5° 9.0 50 100 10 2 d Tolerance Ø 0 ~ 0.02 R ± 0.02 A116