GSX MILL 4 Flute Endmills Anti-vibration Type Applicable Products GSXVL 4000S-2.5D Type 4 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 G G G G G G S G S S Coating Corner Side Milling Groove Milling Groove Finishing Face Milling Helical Milling Ramping DC ±0.01 DMM h5 APMX LU LF Helix Angle ■ Body  Applicable Products Dimensions (mm) Cat. No. Stock Cutting diameter Depth of cut Cutting Edge Length Total Length Shank diameter DC APMX LU LF DMM GSXVL 4120S-2.5D 12.0 30 Q 90 12 4140S-2.5D 14.0 35 37.5 110 16 4150S-2.5D 15.0 38 41.0 110 16 4160S-2.5D 16.0 40 Q 115 16 4180S-2.5D 18.0 45 48.0 120 20 GSXVL 4200S-2.5D 20.0 50 Q 125 20 4250S-2.5D 25.0 63 Q 140 25 Grade: ACF20 ■ Endmill Identification (GSXMILL Series Only) GSXVL 4 120 S - 2.5D ① ② ③ ④ ⑤ Series Code No. of Flutes Diameter Safe-Lock Cutting Edge Length Applicable I Coated Endmills Square 2 Flutes 3 Flutes 4 Flutes 6 Flutes Regrinding Instructions 8 Flutes Cautions for Regrinding GSX Anti-vibration Type t5PSFEVDFHSJOEJOHUFNQFSBUVSF JUJTSFDPNNFOEFEUPVTFDPPMBOU t3FNPWFXFBSPSEBNBHFPOUIFUPPMBTNVDIBTQPTTJCMFJOFBDIHSJOEJOHTUFQ t5PJNQSPWFUIFQFSGPSNBODFPGSFHSPVOEJUFNT JUJTSFDPNNFOEFEUPBUUBDISPVOENBSHJO [GSXVL4000-2.5D] POSBEJBMDVUUJOHFEHF t8IJMFTPNFBOUJWJCSBUJPOFGGFDUXJMMCFXPSLFEFWFOJGSPVOENBSHJOBSFOPUBUUBDIFE CVU JUNBZOPUCFQPTTJCMFUPPCUBJOTVGmDJFOUQFSGPSNBODF Radius (1) Peripheral Grinding (2) Regrinding Radial Cutting Edge (Rake Face and Relief) Ballnose DLC t(SJOEUIFQFSJQIFSZPGUIFFOENJMM t/FYU HSJOESBEJBMDVUUJOHFEHFT *GOPUDSFBUJOHSPVOEMBOETXIFOSFHSJOEJOH UIJTTUFQJTOPUSFRVJSFE t"GUFSHSJOEJOHUXPDVUUJOHFEHFTXJUITBNFIFMJYBOHMF HSJOEUIF SFNBJOJOHUXPDVUUJOHFEHFT tWhen grinding the relief, leave round margin with approximately 0.05 mm width. *GSBLFGBDFTBSFOPUEBNBHFE UIFZEPOPUOFFEUPCFHSPVOE *GOPUBUUBDISPVOENBSHJO HSJOEUIFSFMJFGBTGBSBTUIFDVUUJOHFEHF  SUMIDIA FOTVSJOHUIBUOPVOHSPVOEBSFBTPGUIFSBEJBMDVUUJOHFEHF Coat (3) Regrinding Gash and End Cutting Edge (4) Recoating 103.5° Recoating/Before Use Pitch of End Cutting t$IFDLUIBUUIFSFBSFOPXFBSPSEBNBHFPOUIFSFHSPVOEUPPM t$IFDLUIBUUIFSFBSFOPCVSST FUD POUIFDVUUJOHFEHF Edge When New Long 76.5° t"GUFSSFHSJOEJOH DPBUDVUUJOHFEHFTCFGPSFVTF 8IFOVTJOHVODPBUFENPEFMT UIJTTUFQJTOPUSFRVJSFE Neck Design of Tool before regrind 3FHSJOEJOH"MMPXBODFPG&OE$VUUJOH&EHF 4QFDJmDBUJPOTPGUPPMCFGPSFSFHSJOE 1FSJQIFSBM3PVOE.BSHJO D &EHF")FMJY"OHMFPG-POH&OE$VUUJOH&EHF¡ "JN'PSNN Uncoated Pitch of End Cutting &EHF#)FMJY"OHMFPG4IPSU&OE$VUUJOH&EHF¡ "QQSPY¡ 1JUDI"OHMFPG&OE$VUUJOH&EHF¡¡¡¡ Edge When Reground E 1FSJQIFSBM oEfdge 3FMJFG"OHMF t-BTUMZ HSJOEUIFFOEDVUUJOHFEHF "QQSPY¡ " RCarodsiaslSCeuctttiion"ng ¡ # ¡ t5IFQJUDIBOHMFPGUIFFOEDVUUJOHFEHFJT¡¡GPSOFXFOENJMMT  CVUEVFUPUIFUPPMTVOFRVBMMZMFBE QJUDIBOHMFDIBOHFTEFQFOEJOHPO CBN DVUUJOHFEHFMFOHUI $POTJEFSXIBUUIFDVUUJOHFEHFMFOHUIXJMMCFBGUFSSFHSJOEJOH NFBTVSF # # # QJUDIBOHMFTDBOEEJOBEWBODF BOEUIFOSFHSJOE PCD t"TXJUISFHSJOEJOHUIFSBEJBMDVUUJOHFEHFJOTUFQ  BGUFSHSJOEJOHUXP DVUUJOHFEHFTXJUITBNFIFMJYBOHMF HSJOEUIFSFNBJOJOHUXPDVUUJOHFEHFT "QQSPY¡ " 8IFOSFHSJOEJOHSBEJBMDVUUJOHFEHFTPOMZ UIJTTUFQJTOPUSFRVJSFE " Please download the data from the following URL. [www.sumitool.com/en/ products/cutting-tools/endmills/ gsx.html] I54