VN70010.0880 High-speed steel HSS DIN 1869
Type N
Tool geometry
Point shape - form C
Point angle 118°
Drilling depth 20xD
Right helix
Material HSS
D l1 l2 Item code On stock
8,8 320 220 VN70010.0880 No

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 20 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 20 0,014 0,04 0,063 0,08 0,08 0,1 0,125 0,16 0,16
P.3 | Tool steels low alloyed ≤ 1100 N/mm² 25 0,014 0,04 0,063 0,08 0,08 0,1 0,125 0,16 0,16
K.1 | Cast iron (≤ 240 HB) ≤ 820 N/mm² 22 0,016 0,05 0,08 0,1 0,1 0,125 0,16 0,2 0,2
N.2 | Aluminium cast alloys Si (Si ≤ 12%) ≤ 600 N/mm² 45 0,018 0,063 0,1 0,125 0,125 0,16 0,2 0,25 0,25
N.3 | Aluminium cast alloys Si (Si > 12%) ≤ 600 N/mm² 36 0,016 0,05 0,08 0,1 0,1 0,125 0,16 0,2 0,2
N.4 | Cooper-zinc alloys, cooper-tin alloys ≤ 800 N/mm² 22 0,012 0,032 0,05 0,063 0,063 0,08 0,1 0,125 0,125

Calculations of cutting conditions

Product attributes

Type N

Type N

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Normal profile of flute, normal core, point angle 118°. Drills made of HSS Co mildly strenghtened core, point angle 130°.
Point shape - form C

Point shape - form C

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Conical lip relief, split point, DIN 1412 form C.
Drilling depth 20xD

Drilling depth 20xD

Material HSS

Material HSS

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High speed steel of average performance, it is applicable especially for cutters of smaller diameters and for milling of materials up to the strength of 900 MPa.
Tool geometry

Tool geometry

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Lead of helix 25° - 30°.
Point angle 118°

Point angle 118°

Right helix

Right helix