
R3 R2 R1 d D (h6) L1 α L Fig 1 R3 R2 R1 d D (h6) L1 α L Fig 2
| Order No. | α | d | R1 | R2 | R3 | L1 | L | D | Flute | Fig |
| ERTSA30815025S ERTSA31020025S | 20° 20° | 8 10 | 1.5R 2.0R | 250R 250R | 4.0R 5.0R | 10.5 12.5 | 75 75 | 8 10 | 3 3 | 1 |
| ERTSA21010020S | 60° | 10 | 1.0R | 200R | 1.5R | 6.0 | 75 | 10 | 2 | 2 |
| Working Material | Cutting Application | aw | Vc | fz (m | m/z) |
| (mm) | (m/min) | 8 mm | 10 mm | ||
| Carbon Steel | 0.05 ~ 0.1 mm | 210 ~ 420 | 0.032 ~ 0.056 | 0.04 ~ 0.07 | |
| (S45C) | 0.1 ~ 0.2 mm | 210 ~ 420 | 0.024 ~ 0.040 | 0.03 ~ 0.05 | |
| Carbon Steel | 0.05 ~ 0.1 mm | 158 ~ 315 | 0.024 ~ 0.040 | 0.03 ~ 0.05 | |
| (S50C) | 0.1 ~ 0.2 mm | 158 ~ 315 | 0.016 ~ 0.024 | 0.02 ~ 0.03 | |
| Tool Steel | 0.05 ~ 0.1 mm | 135 ~ 270 | 0.024 ~ 0.032 | 0.03 ~ 0.04 | |
| (SKD) | 0.1 ~ 0.2 mm | 135 ~ 270 | 0.016 ~ 0.024 | 0.02 ~ 0.03 | |
| Stainless Steel | 0.05 ~ 0.1 mm | 100 ~ 150 | 0.024 ~ 0.032 | 0.03 ~ 0.04 | |
| (SUS304, SUS316) | 0.1 ~ 0.2 mm | 100 ~ 150 | 0.016 ~ 0.024 | 0.02 ~ 0.03 | |
| 0.05 ~ 0.1 mm | 30 ~ 60 | 0.016 ~ 0.024 | 0.02 ~ 0.03 | ||
| Superalloy, Inconel | 0.1 ~ 0.2 mm | 30 ~ 60 | 0.008 ~ 0.016 | 0.01 ~ 0.02 | |
| 0.05 ~ 0.1 mm | 60 ~ 80 | 0.024 ~ 0.032 | 0.03 ~ 0.04 | ||
| Titanium | 0.1 ~ 0.2 mm | 60 ~ 80 | 0.016 ~ 0.024 | 0.02 ~ 0.03 | |
| Hardened Steel | 0.05 ~ 0.1 mm | 100 ~ 130 | 0.032 ~ 0.040 | 0.04 ~ 0.05 | |
| (HRC < 55) | 0.1 ~ 0.2 mm | 100 ~ 130 | 0.024 ~ 0.032 | 0.03 ~ 0.04 |