GSX MILL Endmills (2 Flutes) 2 GSX 20000C-2D Type Flutes 2 Coated Carbide Carbon Steel Alloy Steel Pre-hardened Tempered Steel Die Steel Hardened Steel Stainless Ti Alloy Heat Resistant A loy Cast Iron Aluminum Copper Alloy Graphite CFRP Steel 45 to 55 55 to 60 60 to 65 Steel Alloy HRC HRC HRC Flutes S G G G G G S G S S Coating Corner Side Milling Groove Milling Groove Finishing Face Milling Spot Facing Helical Milling Ramping DC DMM h5 30° APMX DC Tolerance LU D ≤ 3.0 0 –0.015 LF 3.0 < D ≤ 12 0 –0.020 Helix Angle 12.0 < D 0 –0.030 ■ Body  Dimensions (mm) Cat. No. Stock Cutting diameter Depth of cut Cutting Edge Length Total Length Shank diameter DC APMX LU LF DMM GSX 20050C-2D D 0.5 1.0 1.4 40 4 20100C-2D D 1.0 2.0 3.0 40 4 20150C-2D D 1.5 3.0 4.0 40 4 20200C-2D D 2.0 4.0 5.0 40 4 20250C-2D D 2.5 5.0 6.0 40 4 GSX 20300C-2D D 3.0 6.0 7.5 45 6 20350C-2D D 3.5 7.0 8.5 45 6 20400C-2D D 4.0 8.0 9.5 45 6 20450C-2D D 4.5 9.0 10.5 50 6 20500C-2D D 5.0 10.0 12.0 50 6 GSX 20550C-2D D 5.5 11.0 13.0 50 6 20600C-2D D 6.0 12.0 Q 50 6 20650C-2D D 6.5 13.0 15.0 60 8 20700C-2D D 7.0 14.0 16.0 60 8 20750C-2D D 7.5 15.0 17.0 60 8 GSX 20800C-2D D 8.0 16.0 Q 60 8 20850C-2D D 8.5 17.0 19.0 70 10 20900C-2D D 9.0 18.0 20.0 70 10 20950C-2D D 9.5 19.0 21.0 70 10 21000C-2D D 10.0 20.0 Q 70 10 GSX 21050C-2D D 10.5 21.0 23.5 75 12 I 21100C-2D D 11.0 22.0 24.5 75 12 21150C-2D D 11.5 23.0 25.5 75 12 21200C-2D D 12.0 24.0 Q 75 12 Coated Endmills 21300C-2D D 13.0 26.0 29.5 90 16 GSX 21400C-2D D 14.0 28.0 31.5 90 16 21500C-2D D 15.0 30.0 33.5 90 16 21600C-2D D 16.0 32.0 Q 90 16 Square 21700C-2D D 17.0 34.0 38.5 100 20 21800C-2D D 18.0 36.0 40.5 100 20 2 Flutes GSX 21900C-2D D 19.0 38.0 42.5 100 20 3 Flutes 22000C-2D D 20.0 40.0 Q 100 20 22500C-2D D 25.0 50.0 Q 120 25 4 Flutes Grade: ACF20 6 Flutes 8 Flutes Radius ■ Endmill Identification (GSXMILL Series Only) Ballnose GSX 2 0050 C - 2D DLC ① ② ③ ④ ⑤ Series Code No. of Flutes Diameter Cutting Edge Cutting Edge Length SUMIDIA (S: Sharp Edge Coat C: Gash Land Long Neck Uncoated CBN PCD I26 D mark: Standard stocked item (expanded item)