Slot drills short, 2-fluted, 2 teeth cut to centre, type W, code 270618, diameter 21 mm
|
D
e 8 |
d
h 6 | l1 | l2 | Z | Item code | On stock |
|---|---|---|---|---|---|---|
| 21 | 20 | 104 | 38 | 2 | 270618.210 | Yes |
Cutting conditions
Material |
Strength |
Ap |
Ae |
Vc |
fz(mm/z) Ø 3 |
Ø 6 |
Ø 8 |
Ø 10 |
Ø 12 |
Ø 16 |
Ø 18 |
Ø 20 |
Ø 25 |
Ø 30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P.1 | Free-cutting steels, general construction steels | ≤ 600 N/mm² | 0,5xD | 1xD | 45 | 0.009 | 0.022 | 0.029 | 0.036 | 0.044 | 0.058 | 0.065 | 0.073 | 0.91 | 0.11 |
| N.2 | Aluminium cast alloys Si (Si ≤ 12%) | ≤ 600 N/mm² | 0,5xD | 1xD | 160-300 | 0.0117 | 0.0286 | 0.0377 | 0.0468 | 0.0572 | 0.0754 | 0.0845 | 0.0949 | 0.1183 | 0.143 |
Calculations of cutting conditions
Product attributes
Straight shank with clamping flat (Weldon) according to DIN 1835 B.
Helix angle = 40°.
Rake angle = 20°.
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.
For machining of soft materials, for example aluminium and non-ferrous metals.
