
.Designed for undercutting & deburring applications. .It provides an excellent surface finishing of vertical machining. .SICO Nano coating provides a superior wear and heat resistance. .Suitable for Steel, Alloy steel, Stainless steel, Cast iron, & Hardened steel.
| Order No. | Radius (R) | Dia. (d) | ND (d1) | CL (L1) | EFF-L (L2) | OAL (L) | Shank (D) | Flutes (F) |
| EHRRC2020221S | 1.0R | 2 | 1.7 | 1.4 | 5 | 60 | 6 | 2 |
| EHRRC2020222S | 1.0R | 2 | 1.7 | 1.4 | 10 | 60 | 6 | 2 |
| EHRRC2030221S | 1.5R | 3 | 2.6 | 2.0 | 8 | 75 | 6 | 2 |
| EHRRC2030222S | 1.5R | 3 | 2.6 | 2.0 | 15 | 75 | 6 | 2 |
| EHRRC2040221S | 2.0R | 4 | 3.4 | 2.7 | 10 | 75 | 6 | 2 |
| EHRRC2040222S | 2.0R | 4 | 3.4 | 2.7 | 20 | 75 | 6 | 2 |
| EHRRC2050221S | 2.5R | 5 | 4.3 | 3.4 | 12 | 75 | 6 | 2 |
| EHRRC2050222S | 2.5R | 5 | 4.3 | 3.4 | 25 | 75 | 6 | 2 |
| EHRRC2060221S | 3.0R | 6 | 5.1 | 4.3 | 15 | 75 | 6 | 2 |
| EHRRC2060222S | 3.0R | 6 | 5.1 | 4.3 | 30 | 75 | 6 | 2 |
d
d1
L 15°
| Material | Ca Al | rbon Ste loy Steel Cast iron | el / / | Al To Pre-H (SC | loy Stee ol Steel ardened M, SKT, S | l / / Steel KD) | Sta (SUS | inless St 304, SUS | eel 316) | Har | dened S | teel |
| Hardness | H | RC < 30 | HR | C 30 ~ | 45 | - | HR | C 45 ~ | 60 | |||
| VC | 220 | ~ 300 m/ | min | 150 | ~ 220 m | /min | 70 ~ | 150 m/ | min | 130 | ~ 150 m | /min |
| R (mm) | RPM | Feed (mm/min) | ap (mm) | RPM | Feed (mm/min) | ap (mm) | RPM | Feed (mm/min) | ap (mm) | RPM | Feed (mm/min) | ap (mm) |
| 1.0R | 40,000 | 1,600 | 0.04 | 30,000 | 1,200 | 0.04 | 24,000 | 960 | 0.04 | 24,000 | 960 | 0.04 |
| 1.5R | 32,000 | 1,920 | 0.06 | 23,000 | 1,380 | 0.06 | 16,000 | 960 | 0.06 | 16,000 | 960 | 0.06 |
| 2.0R | 24,000 | 1,920 | 0.08 | 17,000 | 1,360 | 0.08 | 12,000 | 960 | 0.08 | 12,000 | 960 | 0.08 |
| 2.5R | 19,200 | 1,920 | 0.10 | 14,000 | 1,400 | 0.10 | 9,600 | 960 | 0.10 | 9,600 | 960 | 0.10 |
| 3.0R | 16,000 | 1,920 | 0.12 | 12,000 | 1,440 | 0.12 | 8,000 | 960 | 0.12 | 8,000 | 960 | 0.12 |
(h6)
| R Tolerance | |
| R ≤ 3 ±0.015 | |
| R > 3 ±0.020 | ap |