Modular Milling ToolsMilling Modular Milling Tools Winmaster - Chamfer Head ∙ 4F / 6F Work Material Carbon Steel Alloy Steel(S45C, S55C)(SK, SCM)Pre-Hardened Steel / Hardened SteelStainless Steel(SUS304, 316)Cast Iron ~ HRC 40 ~ HRC 45 ~ HRC 55 ○ ◎ ◎ ◎ ◎ ○ ◎ Order No. Dia. CL(d)(L1) α° ND(D) M Flutes(M)(F) EPFWA EPFWA410090S 10 5 45° 6.5 M6 4 EPFWA412090S 12 6 45° 6.5 M6 4 P M K N S H EPFWA610090S 10 5 45° 6.5 M6 6 ● ○ ● ○ ● EPFWA612090S 12 6 45° 6.5 M6 6 EPFWA616090S 16 8 45° 8.5 M8 6 d L1 α° M D A406