GSX MILL Endmills (2 Flutes) 2 Expansion GSX 20000C-1.5D 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-1.5D D 0.5 1.0 1.4 40 4 20100C-1.5D D 1.0 1.5 2.5 40 4 20150C-1.5D D 1.5 2.3 3.3 40 4 20200C-1.5D D 2.0 3.0 4.0 40 4 20250C-1.5D D 2.5 3.8 4.8 40 4 GSX 20300C-1.5D D 3.0 4.5 6.0 45 6 20350C-1.5D D 3.5 5.3 6.8 45 6 20400C-1.5D D 4.0 6.0 7.5 45 6 20450C-1.5D D 4.5 6.8 8.3 50 6 20500C-1.5D D 5.0 7.5 9.5 50 6 GSX 20550C-1.5D D 5.5 8.3 10.3 50 6 20600C-1.5D D 6.0 9.0 Q 50 6 20650C-1.5D D 6.5 10.0 12.0 60 8 20700C-1.5D D 7.0 11.0 13.0 60 8 20750C-1.5D D 7.5 12.0 14.0 60 8 GSX 20800C-1.5D D 8.0 12.0 Q 60 8 20850C-1.5D D 8.5 13.0 15.0 70 10 20900C-1.5D D 9.0 14.0 16.0 70 10 20950C-1.5D D 9.5 15.0 17.0 70 10 21000C-1.5D D 10.0 15.0 Q 70 10 GSX 21050C-1.5D D 10.5 16.0 18.5 75 12 I 21100C-1.5D D 11.0 17.0 19.5 75 12 21150C-1.5D D 11.5 18.0 20.5 75 12 21200C-1.5D D 12.0 18.0 Q 75 12 Coated Endmills 21300C-1.5D D 13.0 20.0 23.5 90 16 GSX 21400C-1.5D D 14.0 21.0 24.5 90 16 21500C-1.5D D 15.0 23.0 26.5 90 16 21600C-1.5D D 16.0 24.0 Q 90 16 Square 21700C-1.5D D 17.0 26.0 30.5 100 20 21800C-1.5D D 18.0 27.0 31.5 100 20 2 Flutes GSX 21900C-1.5D D 19.0 29.0 33.5 100 20 3 Flutes 22000C-1.5D D 20.0 30.0 Q 100 20 22500C-1.5D D 25.0 38.0 Q 120 25 4 Flutes Grade: ACF20 6 Flutes 8 Flutes Radius ■ Endmill Identification (GSXMILL Series Only) Ballnose GSX 2 1000 C - 1.5D 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 I20 D mark: Standard stocked item (expanded item)