GSX MILL Endmills (4 Flutes) 4 GSX 40000C-4D Type Flutes 4 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 Finishing Face Milling 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 40100C-4D D 1.0 4.0 5.0 40 4 40150C-4D D 1.5 6.0 7.0 40 4 40200C-4D D 2.0 8.0 9.0 40 4 40250C-4D D 2.5 10.0 11.0 50 4 40300C-4D D 3.0 12.0 13.5 50 6 GSX 40350C-4D D 3.5 14.0 15.5 50 6 40400C-4D D 4.0 16.0 17.5 50 6 40450C-4D D 4.5 18.0 19.5 60 6 40500C-4D D 5.0 20.0 22.0 60 6 40550C-4D D 5.5 22.0 24.0 60 6 GSX 40600C-4D D 6.0 24.0 Q 60 6 40650C-4D D 6.5 26.0 28.0 70 8 40700C-4D D 7.0 28.0 30.0 80 8 40750C-4D D 7.5 30.0 32.0 80 8 40800C-4D D 8.0 32.0 Q 80 8 GSX 40850C-4D D 8.5 34.0 36.0 90 10 40900C-4D D 9.0 36.0 28.0 90 10 40950C-4D D 9.5 39.0 41.0 90 10 41000C-4D D 10.0 40.0 Q 90 10 41050C-4D D 10.5 42.0 44.5 100 12 GSX 41100C-4D D 11.0 44.0 46.5 100 12 I 41150C-4D D 11.5 46.0 48.5 100 12 41200C-4D D 12.0 48.0 Q 100 12 41300C-4D D 13.0 52.0 55.5 110 16 Coated Endmills 41400C-4D D 14.0 56.0 59.5 120 16 GSX 41500C-4D D 15.0 60.0 63.5 120 16 41600C-4D D 16.0 64.0 Q 120 16 41700C-4D D 17.0 68.0 72.5 130 20 Square 41800C-4D D 18.0 72.0 76.5 130 20 41900C-4D D 19.0 76.0 80.5 140 20 2 Flutes GSX 42000C-4D D 20.0 80.0 Q 140 20 3 Flutes 42500C-4D D 25.0 100.0 Q 160 25 Grade: ACF20 4 Flutes 6 Flutes ■ Endmill Identification (GSXMILL Series Only) 8 Flutes Radius GSX 4 0100 C - 4D Ballnose ① ② ③ ④ ⑤ DLC Series Code No. of Flutes Diameter Cutting Edge Cutting Edge Length (S: Sharp Edge SUMIDIA C: Gash Land Coat Long Neck Uncoated CBN PCD I62 D mark: Standard stocked item (expanded item)