VK10028 High-speed steel HSS Co8
Type N
Tool geometry
Point shape - form C
Point angle 128°
Drilling depth 5xD
Right helix
Material HSS Co8
Steamtempered (Black finish)
D MK l1 l2 Item code On stock
10 2 190 90 VK10028.1000 Yes
11 2 190 90 VK10028.1100 Yes
12 2 190 90 VK10028.1200 Yes
13 2 190 90 VK10028.1300 Yes
14 2 190 90 VK10028.1400 Yes
15 2 190 90 VK10028.1500 Yes
16 2 190 90 VK10028.1600 Yes
17 2 190 90 VK10028.1700 Yes
18 2 190 90 VK10028.1800 Yes
19 3 225 105 VK10028.1900 Yes
20 3 225 105 VK10028.2000 Yes
21 3 225 105 VK10028.2100 Yes
22 3 225 105 VK10028.2200 Yes
23 3 225 105 VK10028.2300 Yes
24 3 225 105 VK10028.2400 No
25 3 225 105 VK10028.2500 Yes
26 3 225 105 VK10028.2600 Yes
27 4 265 120 VK10028.2700 Yes
28 4 265 120 VK10028.2800 Yes
29 4 265 120 VK10028.2900 Yes
30 4 265 120 VK10028.3000 No
31 4 265 120 VK10028.3100 Yes
32 4 265 120 VK10028.3200 Yes
33 4 265 120 VK10028.3300 No
34 4 265 120 VK10028.3400 No
35 4 265 120 VK10028.3500 Yes
36 4 265 120 VK10028.3600 Yes
37 4 265 120 VK10028.3700 No
38 4 265 120 VK10028.3800 Yes
39 4 265 120 VK10028.3900 Yes
40 4 265 120 VK10028.4000 Yes
41 4 265 120 VK10028.4100 No
42 4 265 120 VK10028.4200 Yes
43 4 265 120 VK10028.4300 No
44 4 265 120 VK10028.4400 No
45 4 265 102 VK10028.4500 No
50 5 340 150 VK10028.5000 No

Cutting conditions


Material

Strength

Vc
fz(mm/r)
Ø10

Ø12,5

Ø16

Ø20

Ø25

Ø31,5

Ø40

Ø50
S.1 | Chrome-nickel alloys ≤ 1500 N/mm² 6 0,063 0,063 0,08 0,1 0,125 0,125 0,16 0,2
H.1 | Hardened materials (< 54 HRC) ≤ 1920 N/mm² (<54 HRC) 9 0,125 0,125 0,16 0,2 0,25 0,25 0,315 0,4
H.2 | Hardened materials (54 - 60 HRC) 1920 - 2210 N/mm² (54 - 60 HRC) 5 0,125 0,125 0,16 0,2 0,25 0,25 0,315 0,4

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 5xD

Drilling depth 5xD

Material HSS Co8

Material HSS Co8

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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.
Tool geometry

Tool geometry

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Lead of helix 10° - 15°.
Point angle 128°

Point angle 128°

Right helix

Right helix

Steamtempered (Black finish)

Steamtempered (Black finish)

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Steamtempered (Black finish) is a process where a layer of iron oxide is formed on the surface of the tool. This layer increases the abrasion resistance of the blade, increases corrosion resistance and improves lubrication of the tool. The most effective use is for drill bits and taps.