Solid Carbide Endmills G550 - Taper Neck ∙ Corner Radius ∙ 2F .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. Order No. Dia.(d) CornerRadius(R)θ˚CL EFF-L OAL Shank Flutes(L1)(L2)(L)(D)(F) EPCRT EPCRT20100120HU 1.0 0.10R 0.5° 2.0 20 60 6 2 EPCRT201001201U 1.0 0.10R 1.0° 2.0 20 60 6 2 EPCRT20100120AU 1.0 0.10R 1.5° 2.0 20 60 6 2 P M K N S H EPCRT201201230HU2C 1.2 0.12R 0.5° 2.0 30 75 6 2 ● ● ● ○ EPCRT2012012301U2C 1.2 0.12R 1.0° 2.0 30 75 6 2 EPCRT201201230AU2C 1.2 0.12R 1.5° 2.0 30 75 6 2 d R EPCRT201501530HU2C 1.5 0.15R 0.5° 2.0 30 75 6 2 L1 EPCRT2015015301U2C 1.5 0.15R 1.0° 2.0 30 75 6 2 EPCRT201501530AU2C 1.5 0.15R 1.5° 2.0 30 75 6 2 EPCRT201801830HU2C 1.8 0.18R 0.5° 2.0 30 75 6 2 L2 EPCRT2018018301U2C 1.8 0.18R 1.0° 2.0 30 75 6 2 EPCRT201801830AU2C 1.8 0.18R 1.5° 2.0 30 75 6 2 θ° EPCRT20200225AU 2.0 0.20R 1.5° 3.0 25 75 6 2 L d2 EPCRT20200239AU 2.0 0.20R 1.5° 3.0 39 75 6 2EPCRT20200525AU2.00.50R1.5°3.0257562 EPCRT20200539AU 2.0 0.50R 1.5° 3.0 39 75 6 2 EPCRT20200550AU 2.0 0.50R 1.5° 3.0 50 100 6 2 EPCRT20200535HU4C 2.0 0.50R 0.5° 4.0 35 75 6 2 EPCRT202005351U4C 2.0 0.50R 1.0° 4.0 35 75 6 2 EPCRT20200535AU4C 2.0 0.50R 1.5° 4.0 35 75 6 2 EPCRT20250535HU5C 2.5 0.50R 0.5° 5.0 35 75 6 2 EPCRT202505351U5C 2.5 0.50R 1.0° 5.0 35 75 6 2 D(h6) EPCRT20250535AU5C 2.5 0.50R 1.5° 5.0 35 75 6 2 EPCRT20251035HU5C 2.5 1.00R 0.5° 5.0 35 75 6 2 EPCRT202510351U5C 2.5 1.00R 1.0° 5.0 35 75 6 2 EPCRT20251035AU5C 2.5 1.00R 1.5° 5.0 35 75 6 2 d Tolerance d≤6 0 ~ -0.02 6 < d ≤ 12 0 ~ -0.03 d > 12 0 ~ -0.04 R Tolerance R<2 ±0.015 R≥2 ±0.020 A103