Solid Carbide Endmills H680 Pro - High Precision ∙ Short with Neck ∙ Ball Nose ∙ 2F . SICO Pro coating improve heat and oxidation resistance. . Special SR geometry design with wear resistance, good chip discharge and high rigidity. . For hardened materials milling from HRC 40 to HRC 60. . High-efficiency for roughing and high feed finishing. . SICO Pro coating includes Al, Ti, Si, N elements. H680 Pro Radius Dia. CL EFF-L OAL Shank Flutes Order No. (R) (d) (L1) (L2) (L) (D) (F) EHBUF EHBUF240200PS 0.10R 0.2 0.2 0.2 50 4 2 EHBUF240400PS 0.20R 0.4 0.4 0.4 50 4 2 EHBUF240600PS 0.30R 0.6 0.6 0.6 50 4 2 P M K N S H EHBUF240800PS 0.40R 0.8 0.8 0.8 50 4 2 ● ○ ● ○ ● EHBUF241000PS 0.50R 1.0 1.0 1.0 50 4 2 EHBUF241500PS 0.75R 1.5 1.5 1.5 50 4 2 R EHBUF242000PS 1.00R 2.0 2.0 2.0 50 4 2 EHBUF202000PS 1.00R 2.0 2.0 2.0 50 6 2 L1 EHBUF243000PS 1.50R 3.0 3.0 3.0 50 4 2 L2 EHBUF203000PS 1.50R 3.0 3.0 3.0 50 6 2 EHBUF244000PS 2.00R 4.0 4.0 4.0 50 4 2 EHBUF204000PS 2.00R 4.0 4.0 4.0 50 6 2 * EHBUF241001PS 0.50R 1.0 1.0 2 50 4 2 L * EHBUF241501PS 0.75R 1.5 1.5 3 50 4 2 * EHBUF242001PS 1.00R 2.0 2.0 4 50 4 2 * EHBUF243001PS 1.50R 3.0 3.0 6 50 4 2 * EHBUF244001PS 2.00R 4.0 4.0 8 50 4 2 * EHBUF206001PS 3.00R 6.0 6.0 12 50 6 2 * EHBUF208001PS 4.00R 8.0 8.0 16 60 8 2 * EHBUF210001PS 5.00R 10.0 10.0 20 75 10 2 * EHBUF212001PS 6.00R 12.0 12.0 24 75 12 2 D (h5) Cutting conditions : Table 007 R Tolerance R≤3 ±0.005 R>3 ±0.007 A021