
| Cutting | Fe | ed:f (mm/r | ev) | ||||||
| ISO | Workpiece material | speed | DC(mm) | ||||||
| Vc (m/min) | ø6 - 7.9 | ø8 - 9.9 | ø10 - ø11.9 | ø12 - ø13.9 | ø14 - ø15.9 | ø16 - ø19.9 | ø20 - ø25.9 | ||
| Low carbon steels (C < 0.3) SS400, SM490, S25C, etc. C15E4, E275A, E355D, etc. | 80 - 140 | 0.09 - 0.13 | 0.12 - 0.25 | 0.15 - 0.28 | 0.18 - 0.3 | 0.20 - 0.35 | 0.25 - 0.45 | 0.25 - 0.45 | |
| High carbon steels (C > 0.3) S45C, S55C, etc. C45, C55, etc. | 70 - 120 | 0.09 - 0.13 | 0.12 - 0.25 | 0.15 - 0.28 | 0.18 - 0.3 | 0.2 - 0.35 | 0.25 - 0.45 | 0.25 - 0.45 | |
| Low alloy steels SCM415, etc. 18CrMo4, etc. | 70 - 120 | 0.08 - 0.13 | 0.11 - 0.25 | 0.14 - 0.28 | 0.16 - 0.32 | 0.18 - 0.35 | 0.23 - 0.4 | 0.25 - 0.45 | |
| Alloy steels SCM440, SCr420, etc. 42CrMo4, 20Cr4, etc. | 40 - 90 | 0.08 - 0.13 | 0.11 - 0.25 | 0.14 - 0.28 | 0.16 - 0.32 | 0.18 - 0.35 | 0.23 - 0.4 | 0.25 - 0.45 | |
| Stainless steels SUS304, SUS316, etc. X5CrNi18-9, X5CrNiMo17-12-2, etc. | 30 - 70 | 0.08 - 0.1 | 0.1 - 0.15 | 0.12 - 0.18 | 0.14 - 0.2 | 0.16 - 0.24 | 0.16 - 0.26 | 0.18 - 0.3 | |
| Grey cast irons FC250, etc. | 80 - 180 | 0.12 - 0.18 | 0.15 - 0.3 | 0.20 - 0.35 | 0.25 - 0.4 | 0.3 - 0.45 | 0.35 - 0.55 | 0.35 - 0.6 | |
| GG25, etc. | |||||||||
| Ductile cast irons FCD700, etc. GGG70, etc. | 80 - 140 | 0.12 - 0.18 | 0.15 - 0.3 | 0.20 - 0.35 | 0.25 - 0.4 | 0.3 - 0.45 | 0.35 - 0.55 | 0.35 - 0.6 | |
| Aluminium alloys ADC12, etc. AlSi11Cu3, etc. | 80 - 220 | 0.1 - 0.2 | 0.2 - 0.35 | 0.25 - 0.4 | 0.3 - 0.45 | 0.35 - 0.5 | 0.4 - 0.6 | 0.5 - 0.75 | |
| Titanium alloys Ti-6Al-4V, etc. | 20 - 50 | 0.05 - 0.07 | 0.06 - 0.12 | 0.08 - 0.15 | 0.1 - 0.28 | 0.12 - 0.2 | 0.14 - 0.22 | 0.18 - 0.27 | |
| Nickel-based alloys | 20 - 50 | 0.05 - 0.07 | 0.06 - 0.11 | 0.08 - 0.13 | 0.1 - 0.15 | 0.12 - 0.18 | 0.12 - 0.22 | 0.14 - 0.22 | |
| Hardened steel | 20 - 50 | 0.05 - 0.07 | 0.06 - 0.12 | 0.08 - 0.15 | 0.1 - 0.18 | 0.12 - 0.2 | 0.14 - 0.22 | 0.16 - 0.25 |
- Cutting conditions in the above table show standard cutting conditions. - Machined hole diameter may change depending upon the rigidity of the - Cutting conditions may change due to the rigidity and power of the machine machine tool or cutting conditions. and the workpiece material. - In case of L/D = 8,12 drill, the recommended range of cutting speeds and feeds is between the minimum and median values listed above.
Recommended value of un-clamping torque that means usable limit of a drill body shown in below table.
| Head Designation | (N・m) Recommended value that means usable | (cN・m) of un-clamping torque limit of a drill body |
| DM100-109 | 0.2 | 20 |
| DM110-119 | 0.2 | 20 |
| DM120-129 | 0.25 | 25 |
| DM130-139 | 0.25 | 25 |
| DM140-149 | 0.3 | 30 |
| DM150-159 | 0.3 | 30 |
| DM160-169 | 0.35 | 35 |
| DM170-179 | 0.35 | 35 |
| DM180-189 | 0.4 | 40 |
| DM190-199 | 0.4 | 40 |
can be connect