ST-H Serie High Precision Square End Mill

Square End Mills

ST-H Serie High Precision Square End Mill is a high-performance milling tool that is ideal for demanding steel roughing operations. It is made from tungsten carbide and has a 55° cutting edge that provides a good balance of chip clearance and surface finish. The tool is also available in a variety of sizes and flute counts to meet the needs of specific applications.

Product Features:

Premium tungsten carbide construction:

This ultra-tough material withstands even the most demanding steel, ensuring long tool life and consistent performance.

55° cutting angle:

Strikes the perfect balance between aggressive chip clearance and a smooth surface finish, minimizing the need for additional finishing passes.

High-precision grinding:

Ensures exceptional sharpness and dimensional accuracy, guaranteeing consistent results and minimal waste.

Superior surface finish:

Often eliminates the need for additional finishing passes, further streamlining your workflow and reducing costs.

CPD55O

TISIN

HRC
55

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Product Detail

For Steel , Cast Iron

Unit

(mm)

D≤12

D>12

-0.015

-0.02

Diameterd
D

Cutting
Length L

Shank
D2

Overall LengthCutting
L2

1.5

2.5

100

150

100

150

Ordering Code

ST-H-4F-01030450

ST-H-4F-015050450

ST-H-4F-02060450

ST-H-4F-025080450

ST-H-4F-03090450

ST-H-4F-04120450

ST-H-4F-05130650

ST-H-4F-06180650

ST-H-4F-08200860

ST-H-4F-10301075

ST-H-4F-12361275

ST-H-4F-144014100

ST-H-4F-164516100

ST-H-4F-185018100

ST-H-4F-205020100

ST-H-4F-03120475

ST-H-4F-04160475

ST-H-4F-05200675

ST-H-4F-06250675

ST-H-4F-08320875

ST-H-4F-031204100

ST-H-4F-041604100

ST-H-4F-062506100

ST-H-4F-083208100

ST-H-4F-104010100

ST-H-4F-125012100

ST-H-4F-064506150

ST-H-4F-085008150

ST-H-4F-105510150

ST-H-4F-126012150

ST-H-4F-166516150

ST-H-4F-208020150

Work Material

Iso

Workpiece Material

Depth of cut (mm)

VC
m/min

<45HRC
Carbon Steel Alloy Steel

50HRC
Alloy Steel

Ap≤1D
Ap≤0.5d

80
60

Rote Speed (Min-1)
Feed Velocity (Mm/Min)

<32HRC
Gry Cast Iron, Nodular Cast Iroron

35-45HRC
High Alloy Cast Iron

Ap≤1D
Ap≤0.8

55
55

Rote Speed (Min-1)
Feed Velocity (Mm/Min)

Tool Diameter (mm)

4250
760

2390
700

2550
660

2120
640

1590
640

1270
710

3190
380

2390
380

1910
380

1590
380

1190
330

960
310

2920
370

2190
370

1750
360

1460
350

1100
310

880
280

2920
350

2390
380

1750
350

1460
320

1133
290

880
280

Above table is the standard cutting data for side mlling maching, f for groove cutting, the VC should reach 50%-70% and the fed should reach 40%-60% based on the table.