
| Material | Harden | ed Steel / | Pre-Hardened S | teel | Nick | el Alloy | ||
| Hardness | HRC | 40 ~ 45 | HRC | 45 ~ 50 | HRC | 50 ~ 60 | HRC | 33 ~ 45 |
| Vc | 30 ~ | 50 m/min | 20 ~ | 30 m/min | 20 ~ 3 | 0 m/min | 15 ~ | 30 m/min |
| Dia(mm) | RPM | Feed(mm/rev) | RPM | Feed(mm/rev) | RPM | Feed(mm/rev) | RPM | Feed(mm/rev) |
| 4 | 3200 | 0.04 ~ 0.08 | 2000 | 0.04 ~ 0.08 | 2000 | 0.03 ~ 0.06 | 1600 | 0.04 ~ 0.08 |
| 5 | 2500 | 0.05 ~ 0.10 | 1600 | 0.05 ~ 0.10 | 1600 | 0.04 ~ 0.08 | 1300 | 0.05 ~ 0.10 |
| 6 | 2100 | 0.06 ~ 0.12 | 1300 | 0.06 ~ 0.12 | 1300 | 0.05 ~ 0.09 | 1100 | 0.06 ~ 0.12 |
| 7 | 1800 | 0.07 ~ 0.14 | 1100 | 0.07 ~ 0.14 | 1100 | 0.06 ~ 0.11 | 900 | 0.07 ~ 0.14 |
| 8 | 1600 | 0.08 ~ 0.16 | 1000 | 0.08 ~ 0.16 | 1000 | 0.06 ~ 0.12 | 800 | 0.08 ~ 0.16 |
| 9 | 1400 | 0.09 ~ 0.18 | 900 | 0.09 ~ 0.18 | 900 | 0.07 ~ 0.14 | 700 | 0.09 ~ 0.18 |
| 10 | 1300 | 0.10 ~ 0.20 | 800 | 0.10 ~ 0.20 | 800 | 0.08 ~ 0.15 | 600 | 0.10 ~ 0.20 |
| 11 | 1150 | 0.11 ~ 0.22 | 720 | 0.11 ~ 0.22 | 720 | 0.09 ~ 0.17 | 600 | 0.11 ~ 0.22 |
| 12 | 1100 | 0.12 ~ 0.24 | 700 | 0.12 ~ 0.24 | 700 | 0.10 ~ 0.18 | 500 | 0.12 ~ 0.24 |
| Drill Diameter | Ø3-6 | mm | Ø6.1~1 | 0mm | Ø10.1- | 16mm | |
| Work Material | Hardness | Vc (m/min) | Feed (mm/rev) | Vc (m/min) | Feed (mm/rev) | Vc (m/min) | Feed (mm/rev) |
| Mild Steel | ( | 60~100 | 0.1~0.2 | 80~120 | 0.15~0.3 | 100~140 | 0.25~0.4 |
| P Cabon Steel | (180~280HB) | 60~90 | 0.1~0.2 | 80~110 | 0.15~0.3 | 100~130 | 0.25~0.4 |
| Alloy Steel | (280~350HB) | 50~80 | 0.08~0.18 | 60~100 | 0.15~0.27 | 70~110 | 0.22~0.35 |
| M Stainless Steel | ( | 30~50 | 0.06~0.15 | 40~70 | 0.1~0.25 | 50~90 | 0.2~0.3 |
| K Cast lron | ( | 70~100 | 0.1~0.2 | 80~120 | 0.15~0.3 | 90~140 | 0.25~0.4 |
| Ductile Cast lron | ( | 50~80 | 0.1~0.2 | 60~90 | 0.15~0.3 | 70~110 | 0.25~0.4 |
| Aluminum | - | 70~120 | 0.1~0.25 | 80~140 | 0.15~0.35 | 90~160 | 0.3~0.45 |
| N Aluminum >12% Si | - | 60~100 | 0.1~0.25 | 70~120 | 0.15~0.35 | 90~140 | 0.3~0.45 |
| S Heat Resistant Alloy | - | 15~30 | 0.02~0.08 | 20~40 | 0.04~0.1 | 25~45 | 0.06~0.12 |
| H Hardened Material | 40~60HRC | 10~25 | 0.02~0.08 | 15~35 | 0.04~0.1 | 20~40 | 0.06~0.12 |
| Drill Diameter | Ø3-6 | mm | Ø6.1~1 | 0mm | Ø10.1- | 16mm | |
| Work Material | Hardness | Vc (m/min) | Feed (mm/rev) | Vc (m/min) | Feed (mm/rev) | Vc (m/min) | Feed (mm/rev) |
| Mild Steel | ( | 35~60 | 0.1~0.2 | 45~75 | 0.15~0.3 | 50~85 | 0.25~0.4 |
| P Cabon Steel | (180~280HB) | 30~55 | 0.1~0.2 | 40~70 | 0.15~0.3 | 45~80 | 0.25~0.4 |
| Alloy Steel | (280~350HB) | 25~50 | 0.08~0.18 | 35~65 | 0.15~0.27 | 40~75 | 0.22~0.35 |
| M Stainless Steel | ( | 20~40 | 0.06~0.15 | 25~50 | 0.1~0.25 | 30~60 | 0.2~0.3 |
| Cast lron | ( | 40~60 | 0.1~0.2 | 50~75 | 0.15~0.3 | 55~85 | 0.25~0.4 |
| K Ductile Cast lron | ( | 35~55 | 0.1~0.2 | 45~70 | 0.15~0.3 | 50~80 | 0.25~0.4 |
| N Aluminum | - | 60~100 | 0.1~0.25 | 65~115 | 0.15~0.35 | 70~130 | 0.3~0.45 |
| Aluminum >12% Si | - | 50~90 | 0.1~0.25 | 60~110 | 0.15~0.35 | 65~120 | 0.3~0.45 |
| S Heat Resistant Alloy | - | 15~30 | 0.02~0.08 | 20~40 | 0.04~0.1 | 25~45 | 0.06~0.12 |
| H Hardened Material | 40~60HRC | 10~25 | 0.02~0.08 | 15~35 | 0.04~0.1 | 20~40 | 0.06~0.12 |