HRC55 Solid Carbide End Mills Step Drill With Copper Coating For Drilling Oil Holes
Tungsten Carbide drill bit
1.Dimension : 3.3x58, 3.5x58, 6.0x82, 8.0x91, 16.0x133 and customized sizes
2.Measurements manufactured according to standard DIN6537
Chisel edge grinding IRK standard
Primary edge point angle 140°
Shank according to DIN6535HA h6
Standard size:
| Diameter | Cutting length | Over length |
| 0.5 | 3 | 50 |
| 1.0 | 6 | 50 |
| 1.5 | 9 | 50 |
| 2.0 | 12 | 50 |
| 2.5 | 14 | 50 |
| 3.0 | 16 | 50 |
| 3.5 | 20 | 55 |
| 4.0 | 22 | 55 |
| 4.5 | 24 | 75 |
| 5.0 | 26 | 75 |
| 5.5 | 28 | 75 |
| 6.0 | 28 | 75 |
| 6.5 | 31 | 80 |
| 7.0 | 34 | 80 |
| 7.5 | 34 | 80 |
| 8.0 | 37 | 80 |
| 8.5 | 37 | 90 |
| 9.0 | 40 | 90 |
| 9.5 | 40 | 90 |
| 10.0 | 43 | 90 |
| 11.0 | 47 | 100 |
| 12.0 | 51 | 100 |
| 13.0 | 51 | 100 |
| 14.0 | 51 | 100 |
| 16.0 | 51 | 100 |
| 18.0 | 51 | 100 |
| 20.0 | 51 | 100 |
3.Coating : Optinal
4. Tolerance of cutting edge diameter m7
5.Chip Evacuation Groove special designed, easy evacuation
6.Use for Gary Iron, Ductile Cast Iron, Stainless steel, Structural Steel, Alloy Steel and other common materials; Precise centering ability which enables to gain stable dimensional accuracy and fine surface quality; Suitable for process system with excellent rigidity
