Parallel shank twist drills, long series, type N, code VN20015, diameter 4 mm
D | l1 | l2 | Item code | On stock |
---|---|---|---|---|
4 | 119 | 78 | VN20015.0400 | Yes |
Cutting conditions
Material |
Strength |
Vc |
fz(mm/r) Ø1 |
Ø2 |
Ø3,15 |
Ø4 |
Ø5 |
Ø6,3 |
Ø8 |
Ø10 |
Ø12,5 |
---|---|---|---|---|---|---|---|---|---|---|---|
P.1 | Free-cutting steels, general construction steels | ≤ 600 N/mm² | 36 | 0,016 | 0,05 | 0,08 | 0,1 | 0,1 | 0,125 | 0,16 | 0,2 | 0,2 |
P.2 | General construction steels, steel castings | ≤ 850 N/mm² | 32 | 0,016 | 0,05 | 0,08 | 0,1 | 0,1 | 0,125 | 0,16 | 0,2 | 0,2 |
P.4 | Heat treatable steels | ≤ 900 N/mm² | 18 | 0,014 | 0,04 | 0,063 | 0,08 | 0,08 | 0,1 | 0,125 | 0,16 | 0,16 |
M.1 | Corrosion- and acid-proof steels | ≤ 750 N/mm² | 12 | 0,014 | 0,04 | 0,063 | 0,08 | 0,08 | 0,1 | 0,125 | 0,16 | 0,16 |
M.2 | Corrosion- and acid-proof steels | 750 - 850 N/mm² | 8 | 0,012 | 0,032 | 0,05 | 0,063 | 0,063 | 0,08 | 0,1 | 0,125 | 0,125 |
M.3 | Corrosion- and acid-proof steels | > 850 N/mm² | 10 | 0,012 | 0,032 | 0,05 | 0,063 | 0,063 | 0,08 | 0,1 | 0,125 | 0,125 |
K.1 | Cast iron (≤ 240 HB) | ≤ 820 N/mm² | 32 | 0,018 | 0,063 | 0,1 | 0,125 | 0,125 | 0,16 | 0,2 | 0,25 | 0,25 |
K.2 | Cast iron (> 240 HB) | > 800 N/mm² | 26 | 0,018 | 0,063 | 0,1 | 0,125 | 0,125 | 0,16 | 0,2 | 0,25 | 0,25 |
N.4 | Cooper-zinc alloys, cooper-tin alloys | ≤ 850 N/mm² | 30 | 0,014 | 0,04 | 0,063 | 0,08 | 0,08 | 0,1 | 0,125 | 0,16 | 0,16 |
S.1 | Chrome-nickel alloys | ≤ 1500 N/mm² | 5 | 0,006 | 0,02 | 0,032 | 0,04 | 0,04 | 0,05 | 0,063 | 0,08 | 0,08 |
Product attributes
Type N
more +Normal profile of flute, normal core, point angle 118°. Drills made of HSS Co mildly strenghtened core, point angle 130°.
Point shape - form A
more +Conical lip relief, split point, DIN 1412 form A
Drilling depth 10xD
Material HSS Co5
more +Very high performance high speed steel with good toughness for milling cutters and for milling of materials up to the strength of 1200 MPa.