Slot drills short, 3-fluted centre cutting, 30°, type N, Weldon shank
|
D
e 8 |
d
h 6 | l1 | l2 | Z | Item code | On stock |
|---|---|---|---|---|---|---|
| 11,7 | 12 | 70 | 13 | 3 | 230418H.117 | Yes |
| 13,7 | 12 | 73 | 16 | 3 | 230418H.137 | Yes |
| 15,7 | 16 | 79 | 19 | 3 | 230418H.157 | Yes |
| 17,7 | 16 | 79 | 19 | 3 | 230418H.177 | Yes |
| 19,7 | 20 | 88 | 22 | 3 | 230418H.197 | Yes |
| 21,7 | 20 | 88 | 22 | 3 | 230418H.217 | Yes |
| 24,7 | 25 | 102 | 26 | 3 | 230418H.247 | Yes |
Cutting conditions
Material |
Strength |
Ap |
Ae |
Vc |
fz(mm/z) Ø 12 |
Ø 16 |
Ø 18 |
Ø 20 |
Ø 25 |
|---|---|---|---|---|---|---|---|---|---|
| P.1 | Free-cutting steels, general construction steels | ≤ 600 N/mm² | 0,5xD | 1xD | 45 | 0.044 | 0.058 | 0.065 | 0.073 | 0.091 |
| P.2 | General construction steels, steel castings | ≤ 850 N/mm² | 0,5xD | 1xD | 39 | 0.044 | 0.058 | 0.065 | 0.073 | 0.091 |
| P.3 | Tool steels low alloyed | ≤ 1100 N/mm² | 0,5xD | 1xD | 24 | 0.044 | 0.058 | 0.065 | 0.073 | 0.091 |
| P.4 | Heat treatable steels | ≤ 900 N/mm² | 0,5xD | 1xD | 30 | 0.044 | 0.058 | 0.065 | 0.073 | 0.091 |
| M.2 | Corrosion- and acid-proof steels | 750 - 850 N/mm² | 0,5xD | 1xD | 15 | 0.044 | 0.058 | 0.065 | 0.073 | 0.091 |
| K.1 | Cast iron (≤ 240 HB) | ≤ 820 N/mm² | 0,5xD | 1xD | 35 | 0.044 | 0.058 | 0.065 | 0.073 | 0.091 |
| K.2 | Cast iron (> 240 HB) | > 800 N/mm² | 0,5xD | 1xD | 25 | 0.044 | 0.058 | 0.065 | 0.073 | 0.091 |
| N.2 | Aluminium cast alloys Si (Si ≤ 12%) | ≤ 600 N/mm² | 0,5xD | 1xD | 160-300 | 0.0572 | 0.0754 | 0.0845 | 0.0949 | 0.1183 |
| N.4 | Copper–zinc alloys, copper–tin alloys | ≤ 800 N/mm² | 0,5xD | 1xD | 80-120 | 0.044 | 0.058 | 0.065 | 0.073 | 0.091 |
| S.2 | Titanium, Titanium alloys | ≤ 1250 N/mm² | 0,5xD | 1xD | 12 | 0.0308 | 0.0406 | 0.0455 | 0.0511 | 0.0637 |
Calculations of cutting conditions
Product attributes
Straight shank with clamping flat (Weldon) according to DIN 1835 B.
Helix angle = 30°.
Rake angle = 12°.
End face design
Universal usage. Suitable for materials up to strength 900 MPa.
Feed direction possibility
Extra high performance high speed steel with good toughness and great temperature resistance. It is applicable especially for milling of materials with high strength, austenitic steels, steels for warm working, etc.