Extra long twist drills with inner cooling, 15xD, type N, code S70112, diameter 3,8 mm, coating AlTiN
| D | l1 | l2 | Item code | On stock |
|---|---|---|---|---|
| 3,8 | 108 | 70,5 | S70112.038 ALTIN | No |
Cutting conditions
Material |
Strenght |
Vc |
fz(mm/r) Ø3 |
Ø5 |
Ø8 |
Ø10 |
Ø12 |
Ø15 |
Ø17 |
Ø20 |
|---|---|---|---|---|---|---|---|---|---|---|
| P.1 | Free-cutting steels, general construction steels | ≤ 600 N/mm² | 68 | 0,125 | 0,16 | 0,25 | 0,315 | 0,315 | 0,315 | 0,4 | 0,5 |
| P.2 | General construction steels, steel castings | ≤ 850 N/mm² | 64 | 0,125 | 0,16 | 0,25 | 0,315 | 0,315 | 0,315 | 0,4 | 0,5 |
| P.3 | Tool steels low alloyed | ≤ 1100 N/mm² | 56 | 0,125 | 0,16 | 0,25 | 0,315 | 0,315 | 0,315 | 0,4 | 0,5 |
| P.6 | Tool and treated steels | > 1100 N/mm² | 49 | 0,063 | 0,08 | 0,125 | 0,16 | 0,16 | 0,16 | 0,2 | 0,25 |
| M.1 | Corrosion- and acid-proof steels | ≤ 750 N/mm² | 38 | 0,07 | 0,05 | 0,1 | 0,125 | 0,125 | 0,125 | 0,16 | 0,2 |
| K.1 | Cast iron (≤ 240 HB) | ≤ 820 N/mm² | 68 | 0,125 | 0,16 | 0,25 | 0,315 | 0,315 | 0,315 | 0,4 | 0,5 |
| K.2 | Cast iron (> 240 HB) | > 800 N/mm² | 53 | 0,063 | 0,08 | 0,125 | 0,16 | 0,16 | 0,16 | 0,2 | 0,25 |
Calculations of cutting conditions
Product attributes
Plain straight shank according to DIN 6535 HA.
Point angle 135°
With coolant holes
Offers similar qualities as TiAlN, but even higher hardness. Substanial temperature stability. Designed for the most demanding applications. It provides excellent result mainly when combined with HSSE-PM steels (ASP 2030). The milling cutters manufactured from this steel are coated with AlTiN as standard.