Solid Carbide Endmills H680 - High Precision Long Shank Ball Nose Type - 2F 鎢鋼球型銑刀 - 長柄型 - 2 刃 . SICO-TH Nano coating provides a superior wear and heat resistance. Solid Carbide Endmills . Suitable for HRC 50 and over HRC 50 Hardened Steel, also maximum up to HRC 65. . Ultra grain carbide rods with better abrasion resistance. . R tolerance ±5µm with high precision and high performance on Finishing working situation. . Special geometry design, suitable for high hardened working materials. Radius Dia. CL OAL Shank Flutes Order No. (R) (d) (L1) (L) (D) (F) EHBLF2 EHBNF2 EHBLF204000S 2R 4.0 8 75 6 2 EHBMF2 EHBLF206000S 3R 6.0 12 75 6 2 EHBNF206000S 3R 6.0 12 100 6 2 EHBMF208000S 4R 8.0 16 75 8 2 EHBLF208000S 4R 8.0 16 100 8 2 EHBLF210000S 5R 10.0 20 100 10 2 R EHBLF212000S 6R 12.0 24 100 12 2 L1 L D 65 Cutting conditions ( 建議切削參數表 ) : Table 007 R Tolerance ≦ R3 ± 0.007 ≧ R4 ± 0.007 A017