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NC-spotting drills long 120°, code VN51115, diameter 12 mm

VN51115.1200 High-speed steel HSS Co5
Tool geometry
Point shape - form N
Point angle 120°
Right helix
Material HSS Co5
Cutting conditions Product attributes
NC-spotting drills 120° long
D l1 l2 Item code On stock
12 170 30 VN51115.1200 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 32 0,018 0,063 0,1 0,125 0,125 0,16 0,2 0,25 0,25
P.2 | General construction steels, steel castings ≤ 850 N/mm² 30 0,016 0,05 0,08 0,1 0,1 0,125 0,16 0,2 0,2
P.3 | Tool steels low alloyed ≤ 1100 N/mm² 25 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 15 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 10 0,012 0,032 0,05 0,063 0,063 0,08 0,1 0,125 0,125
M.2 | Corrosion- and acid-proof steels 750 - 850 N/mm² 6 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 8 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 30 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 25 0,018 0,063 0,1 0,125 0,125 0,16 0,2 0,25 0,25

Calculations of cutting conditions

Product attributes

Tool geometry

Tool geometry

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Lead of helix 20°.
Point angle 120°

Point angle 120°

Material HSS Co5

Material HSS Co5

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Very high performance high speed steel with good toughness for milling cutters and for milling of materials up to the strength of 1200 MPa.
Point shape - form N

Point shape - form N

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Conical lip relief, DIN 1412 form N.
Right helix

Right helix

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