3xd Tungsten Carbide Drill Bit With And Without Coolant Holes For Metal CNC Drilling
Products Description
100% raw material(Tungsten carbide / WC)
Grain size: 0.4-0.6μm
Co 10%, 12%
TRS >3600 N/mm2
Hardness HRA 91.8-92.5
Work piece HRC45-50 HRC55-60 HRC65 HRC68
Helix angle 30°-45 °
Diameter of cutting edge 0.2-0.9 mm; 1-20 mm
Diameter of rods 4-20 mm
Length 50-100 mm
Cutting Form Flat, Square, Ball nose, Corner Radius, Taper Flute, etc
Flutes No. 1-7
| HRC45 | HRC55 | HRC60 | HRC65 |
| Grain Size:0.6um Co:10 % Flexural strength:3350N/mm2 |
Grain Size:0.6um Co:10 % Flexural strength:4000N/mm2 |
Grain Size:0.5um Co:12 % Flexural strength:4300N/mm2 |
Grain Size:0.4um Co:12.5 % Flexural strength:4300N/mm2 |
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
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
| 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 |
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