Powerful Solid Carbide HPC Mill for demanding machining
The 4-flute solid carbide HPC mill offers professional users well-conceived solutions for precise machining operations. Thanks to its robust design and special TiAlN coating, it is optimally equipped for high mechanical loads.
Suitable materials

Technical data
- Mill type: Solid carbide HPC end mill
- Number of flutes: 4 (centre cutting)
- Coating: RT405 (PVD-TiAlN)
- Helix angle: 35°/38°
- Design: Short version with neck relief
- Packaging unit: 1 Pc
Dimensions of Solid Carbide HPC Mill with neck relief - Short Version
Cylindrical shank version:
|
Art. Nr. |
D |
d(h6) |
d1 |
H |
M |
L |
Z |
| HPCK-Z4-D4.0-Z RT405 |
2552031 |
4 |
6 |
3,7 |
8 |
16 |
54 |
4 |
HPCK-Z4-D5.0-Z RT405
|
2552032 |
5 |
6 |
4,7 |
9 |
17 |
54 |
4 |
HPCK-Z4-D6.0-Z RT405
|
2552033 |
6 |
6 |
5,7 |
10 |
18 |
54 |
4 |
HPCK-Z4-D8.0-Z RT405
|
2552034 |
8 |
8 |
7,7 |
12 |
22 |
58 |
4 |
HPCK-Z4-D10.0-Z RT405
|
2552035 |
10 |
10 |
9,5 |
14 |
26 |
66 |
4 |
HPCK-Z4-D12.0-Z RT405
|
2552036 |
12 |
12 |
11,5 |
16 |
28 |
73 |
4 |
HPCK-Z4-D16.0-Z RT405
|
2552037 |
16 |
16 |
15,5 |
22 |
34 |
82 |
4 |
HPCK-Z4-D20.0-Z RT405
|
2552038 |
20 |
20 |
19,5 |
26 |
42 |
92 |
4 |
Weldon shank version:
|
Art. Nr. |
D |
d(h6) |
d1 |
H |
M |
L |
Z |
| HPCK-Z4-D4.0 RT405 |
2551601 |
4 |
6 |
3,7 |
8 |
16 |
54 |
4 |
| HPCK-Z4-D5.0 RT405 |
2551602 |
5 |
6 |
4,7 |
9 |
17 |
54 |
4 |
| HPCK-Z4-D6.0 RT405 |
2551603 |
6 |
6 |
5,7 |
10 |
18 |
54 |
4 |
| HPCK-Z4-D8.0 RT405 |
2551604 |
8 |
8 |
7,7 |
12 |
22 |
58 |
4 |
| HPCK-Z4-D10.0 RT405 |
2551605 |
10 |
10 |
9,5 |
14 |
26 |
66 |
4 |
| HPCK-Z4-D12.0 RT405 |
2551606 |
12 |
12 |
11,5 |
16 |
28 |
73 |
4 |
| HPCK-Z4-D16.0 RT405 |
2551607 |
16 |
16 |
15,5 |
22 |
34 |
82 |
4 |
| HPCK-Z4-D20.0 RT405 |
2551608 |
20 |
20 |
19,5 |
26 |
42 |
92 |
4
|
Cutting data
|
|
Ae |
Cutting speed |
Feed fz [mm/z] |
|
|
|
Vc[m/min] |
Ø 3-5 |
Ø 6-8 |
Ø 10 |
Ø 12-16 |
Ø 20 |
| Structural Steel |
<450 |
1/1 |
170-200 |
0,05-0,06 |
0,06-0,07 |
0,07 |
0,07-0,08 |
0,08 |
| 1/2 |
190-230 |
0,07-0,08 |
0,08-0,09 |
0,09 |
0,09-0,1 |
0,1 |
| 1/10 |
200-280 |
0,12-0,14 |
0,14-0,18 |
0,22 |
0,23-0,27 |
0,32-0,36 |
Tempered Steel
|
450-700
|
1/1 |
130-190 |
0,05-0,06 |
0,06-0,07 |
0,07 |
0,07-0,08 |
0,08 |
| 1/2 |
160-210 |
0,07-0,08 |
0,08-0,09 |
0,09 |
0,09-0,1 |
0,1 |
| 1/10 |
180-220 |
0,12-0,14 |
0,14-0,18 |
0,22 |
0,23-0,27 |
0,32-0,36 |
| Tooling Steel |
>700 |
1/1 |
120-180 |
0,05-0,06 |
0,06-0,07 |
0,07 |
0,07-0,08 |
0,08 |
| 1/2 |
150-200 |
0,07-0,08 |
0,08-0,09 |
0,09 |
0,09-0,1 |
0,1 |
| 1/10 |
170-220 |
0,12-0,14 |
0,14-0,18 |
0,22 |
0,23-0,27 |
0,32-0,36 |
| Stainless Steel |
<1100 |
1/1 |
60-90 |
0,05 |
0,05 |
0,05 |
0,05-0,06 |
0,06 |
| 1/2 |
80-100 |
0,06 |
0,06-0,07 |
0,07 |
0,07-0,08 |
0,08 |
| 1/10 |
100-130 |
0,1 |
0,1-0,12 |
0,12 |
0,14-0,16 |
0,18 |
| Cast Iron |
|
1/1 |
150-200 |
0,06 |
0,06-0,07 |
0,07 |
0,07-0,08 |
0,08 |
| 1/2 |
160-240 |
0,08 |
0,09 |
0,09 |
0,09-0,10 |
0,10 |
| 1/10 |
220-280 |
0,14-0,16 |
0,15-0,18 |
0,22 |
0,25-0,27 |
0,36 |
| Hardened Steel up to 55 HRC |
|
1/1 |
100 |
0,045-0,053 |
0,045-0,053 |
0,053 |
0,053-0,06 |
0,06 |
| 1/2 |
120 |
0,06-0,07 |
0,06-0,07 |
0,07 |
0,07-0,08 |
0,08 |
| 1/10 |
140 |
0,1-0,12 |
0,1-0,12 |
0,12-0,14 |
0,16 |
0,18 |
Applications
This end mill is excellently suited for both roughing and finishing processes on a wide range of materials. Typical machining operations include face milling, shoulder milling, slot milling, drilling slots, ramping, and plunge milling. It is specifically designed to support efficient workflows when processing structural steel, tool steel, stainless steel, and cast iron.

Special features
Thanks to the advanced PVD-TiAlN coating (RT405), the cutting tool exhibits strong resistance against wear and thermal build-up. The unequal helix angle of 35°/38° minimizes vibrations, providing an excellent basis for smooth surface finishes. The integrated neck relief grants additional flexibility for machining deeper cavities. Available with either a cylindrical or Weldon shank, this cutter ensures a reliable grip in numerous tool holder systems.