Double ended twist drills for welding spots
D | l1 | l2 | Item code | On stock |
---|---|---|---|---|
5 | 62 | 20 | VN40225.0500 | Yes |
6 | 66 | 22 | VN40225.0600 | No |
8 | 79 | 27 | VN40225.0800 | Yes |
10 | 89 | 30 | VN40225.1000 | No |
Cutting conditions
Material |
Strength |
Vc |
fz(mm/r) Ø5 |
Ø6,3 |
Ø8 |
Ø10 |
---|---|---|---|---|---|---|
P.1 | Free-cutting steels, general construction steels | ≤ 600 N/mm² | 35 | 0,1 | 0,125 | 0,16 | 0,2 |
P.2 | General construction steels, steel castings | ≤ 850 N/mm² | 30 | 0,1 | 0,125 | 0,16 | 0,2 |
P.3 | Tool steels low alloyed | ≤ 1100 N/mm² | 18 | 0,08 | 0,1 | 0,125 | 0,16 |
P.4 | Heat treatable steels | ≤ 900 N/mm² | 20 | 0,08 | 0,1 | 0,125 | 0,16 |
P.5 | Tool steels high alloyed | ≤ 1100 N/mm² | 18 | 0,08 | 0,1 | 0,125 | 0,16 |
P.6 | Tool and treated steels | > 1100 N/mm² | 18 | 0,08 | 0,1 | 0,125 | 0,16 |
M.1 | Corrosion- and acid-proof steels | ≤ 750 N/mm² | 20 | 0,1 | 0,125 | 0,16 | 0,2 |
M.2 | Corrosion- and acid-proof steels | 750 - 850 N/mm² | 20 | 0,1 | 0,125 | 0,16 | 0,2 |
M.3 | Corrosion- and acid-proof steels | > 850 N/mm² | 20 | 0,1 | 0,125 | 0,16 | 0,2 |
K.1 | Cast iron | ≤ 820 N/mm² (≤ 240 HB) | 35 | 0,125 | 0,16 | 0,2 | 0,25 |
K.2 | Cast iron | > 800 N/mm² (> 240 HB) | 25 | 0,125 | 0,16 | 0,2 | 0,25 |
N.1 | Aluminium, Aluminium cast alloys Si | ≤ 400 N/mm² | 100 | 0,16 | 0,2 | 0,25 | 0,315 |
N.2 | Aluminium cast alloys Si | ≤ 600 N/mm² | 70 | 0,16 | 0,2 | 0,25 | 0,315 |
N.3 | Aluminium cast alloys Si | ≤ 600 N/mm² | 60 | 0,16 | 0,2 | 0,25 | 0,315 |
N.4 | Cooper-zinc alloys, cooper-tin alloys | ≤ 800 N/mm² | 60 | 0,125 | 0,16 | 0,2 | 0,25 |
S.1 | Chrome-nickel alloys | ≤ 1500 N/mm² | 10 | 0,04 | 0,05 | 0,063 | 0,08 |
S.2 | Titanium, Titanium alloys | ≤ 1250 N/mm² | 20 | 0,04 | 0,05 | 0,063 | 0,08 |
Product attributes
Tool geometry
more +Lead of helix 25° - 30°.
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.
Point shape - form E
more +Point angle 180° with centre point, DIN 1412 form E.