This 20mm diameter 4-flute square end mill is designed for high-precision milling in steel, cast iron, and hardened materials. Featuring an AlTiN Black Nano coating, this tool offers exceptional heat resistance, wear resistance, and extended tool life, making it ideal for high-speed CNC machining. Its 4-flute design ensures smooth cutting performance, excellent chip evacuation, and superior surface finish.
2/4 Flutes Flat End Mill Specifications (For Carbon Steel, Alloy Steel, Cast Iron) | |||||
Sizes | Cut Diameter D | Cut Length Lc | Shank Diameter d | Overall Length L | Flutes No. |
3*8*3*50 | 3 | 8 | 3 | 50 | 2 / 4 |
3*12*3*75 | 3 | 12 | 3 | 75 | 2 / 4 |
3*15*3*100 | 3 | 15 | 3 | 100 | 2 / 4 |
1*3*4*50 | 1 | 3 | 4 | 50 | 2 / 4 |
1*3*4*75 | 1 | 3 | 4 | 75 | 4 |
1.5*4*4*50 | 1.5 | 4 | 4 | 50 | 2 / 4 |
1.5*4*4*75 | 1.5 | 4 | 4 | 75 | 4 |
2*5*4*50 | 2 | 5 | 4 | 50 | 2 / 4 |
2*5*4*75 | 2 | 5 | 4 | 75 | 4 |
2.5*7*4*50 | 2.5 | 7 | 4 | 50 | 2 / 4 |
2.5*7*4*75 | 2.5 | 7 | 4 | 75 | 4 |
3*8*4*50 | 3 | 8 | 4 | 50 | 2 / 4 |
3*8*4*75 | 3 | 8 | 4 | 75 | 4 |
3.5*10*4*50 | 3.5 | 10 | 4 | 50 | 2 / 4 |
4*10*4*50 | 4 | 10 | 4 | 50 | 2 / 4 |
4*16*4*75 | 4 | 16 | 4 | 75 | 2 / 4 |
4*20*4*100 | 4 | 20 | 4 | 100 | 2 / 4 |
5*13*5*50 | 5 | 13 | 5 | 50 | 2 / 4 |
5*20*5*75 | 5 | 20 | 5 | 75 | 2 / 4 |
5*25*5*100 | 5 | 25 | 5 | 100 | 2 / 4 |
1*3*6*50 | 1 | 3 | 6 | 50 | 2 / 4 |
1.5*4*6*50 | 1.5 | 4 | 6 | 50 | 2 / 4 |
2*5*6*50 | 2 | 5 | 6 | 50 | 2 / 4 |
2.5*7*6*50 | 2.5 | 7 | 6 | 50 | 2 / 4 |
3*8*6*50 | 3 | 8 | 6 | 50 | 2 / 4 |
3.5*10*6*50 | 3.5 | 10 | 6 | 50 | 2 / 4 |
4*10*6*50 | 4 | 10 | 6 | 50 | 2 / 4 |
4*12*4*50 | 4 | 12 | 4 | 50 | 4 |
4.5*12*6*50 | 4.5 | 12 | 6 | 50 | 2 / 4 |
5*13*6*50 | 5 | 13 | 6 | 50 | 2 / 4 |
5.5*15*6*50 | 5.5 | 15 | 6 | 50 | 2 / 4 |
6*15*6*50 | 6 | 15 | 6 | 50 | 2 / 4 |
6*18*6*50 | 6 | 18 | 6 | 50 | 4 |
6*25*6*75 | 6 | 25 | 6 | 75 | 2 / 4 |
6*30*6*100 | 6 | 30 | 6 | 100 | 2 / 4 |
6*40*6*150 | 6 | 40 | 6 | 150 | 2 / 4 |
7*18*8*60 | 7 | 18 | 8 | 60 | 2 / 4 |
8*20*8*60 | 8 | 20 | 8 | 60 | 2 / 4 |
8*24*8*60 | 8 | 24 | 8 | 60 | 4 |
8*28*8*75 | 8 | 28 | 8 | 75 | 2 / 4 |
8*35*8*100 | 8 | 35 | 8 | 100 | 2 / 4 |
8*50*8*150 | 8 | 50 | 8 | 150 | 2 / 4 |
9*23*10*75 | 9 | 23 | 10 | 75 | 2 / 4 |
10*25*10*75 | 10 | 25 | 10 | 75 | 2 / 4 |
10*30*10*75 | 10 | 30 | 10 | 75 | 4 |
10*40*10*100 | 10 | 40 | 10 | 100 | 2 / 4 |
10*50*10*100 | 10 | 50 | 10 | 100 | 4 |
10*50*10*150 | 10 | 50 | 10 | 150 | 2 / 4 |
11*28*12*75 | 11 | 28 | 12 | 75 | 2 / 4 |
12*30*12*75 | 12 | 30 | 12 | 75 | 2 / 4 |
12*36*12*75 | 12 | 36 | 12 | 75 | 4 |
12*45*12*100 | 12 | 45 | 12 | 100 | 2 / 4 |
12*50*10*100 | 12 | 50 | 12 | 100 | 4 |
12*60*12*150 | 12 | 60 | 12 | 150 | 2 / 4 |
14*35*14*80 | 14 | 35 | 14 | 80 | 2 / 4 |
13*45*14*100 | 13 | 45 | 14 | 100 | 2 / 4 |
14*45*14*100 | 14 | 45 | 14 | 100 | 2 / 4 |
14*60*14*150 | 14 | 60 | 14 | 150 | 2 / 4 |
15*45*16*100 | 15 | 45 | 16 | 100 | 2 / 4 |
16*45*16*100 | 16 | 45 | 16 | 100 | 2 / 4 |
16*60*16*150 | 16 | 60 | 16 | 150 | 2 / 4 |
18*45*18*100 | 18 | 45 | 18 | 100 | 2 / 4 |
18*70*18*150 | 18 | 70 | 18 | 150 | 2 / 4 |
20*45*20*100 | 20 | 45 | 20 | 100 | 2 / 4 |
20*70*20*150 | 20 | 70 | 20 | 150 | 2 / 4 |
✅ Steel – Including low, medium, and high carbon steel, as well as alloy steel.
✅ Cast Iron – Grey cast iron, ductile iron, and other iron-based materials.
✅ Hardened Materials – Works efficiently on materials with high hardness due to its wear-resistant coating.