Tungsten Carbide Micro Drills,Drill Bit For Steel ,Copper, Brass,Bronze
Products Description:
Micro grain raw material
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; 1-30 mm
Diameter of rods 4-30 mm
Length 50-100 mm
Cutting Form Flat, Square, Ball nose, Corner Radius, Taper Flute, etc
Flutes No. 1-12
| 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 |
Application:
Used for cutting Carbon steel, Tool steel, Mould steel, Stainless steel, Titanium alloy, Copper, Cast Iron and Aluminium, etc.
Grinding equipment: WALTER, ANCA, ROLLOMATIC
Testing equipment: ZOLLER
Coating:
| Coating | Color | Coating Temperature | Thickness (um) | HV | Application Temperature | Friction coefficient |
| TiAlN | Purple-Gray | <600°C | 3-5 | 3300 | 800 °C | 0.3 |
| AiTiN | Black | <600°C | 3-5 | 3500 | 900 °C | 0.3 |
| TiXco | Copper | <600°C | 3-5 | 3500 | 1500 °C | 0.4 |
| NaNo | Blue | <600°C | 3-5 | 3800 | 1200 °C | 0.4 |
| AiCrN | Silver Gray | <480 °C | 2-2.5 | 2500 | 700 °C | 0.3 |
Standard Sizes:
| Order No. | Flute dia (d) | Cutting length ( l ) | Shank dia (D) | Overall length(L) |
| 1.0×2.5×4D×50L | 1.0 | 2.5 | 4 | 50 |
| 1.5×4×4D×50L | 1.5 | 4 | 4 | 50 |
| 2.0×5×4D×50L | 2.0 | 5 | 4 | 50 |
| 2.5×7×4D×50L | 2.5 | 7 | 4 | 50 |
| 3.0×8×4D×50L | 3.0 | 8 | 4 | 50 |
| 3.5×10×4D×50L | 3.5 | 10 | 4 | 50 |
| 4.0×10×4D×50L | 4 | 10 | 4 | 50 |
| 4.5×11×6D×50L | 4.5 | 11 | 6 | 50 |
| 5.0×13×6D×50L | 5.0 | 13 | 6 | 50 |
| 5.5×13×6D×50L | 5.5 | 13 | 6 | 50 |
| 6.0×15×6D×50L | 6.0 | 15 | 6 | 50 |
| 6.5×15×8D×60L | 6.5 | 15 | 8 | 60 |
| 7.0×17×8D×60L | 7.0 | 17 | 8 | 60 |
| 7.5×17×8D×60L | 7.5 | 17 | 8 | 60 |
| 8.0×20×8D×60L | 8.0 | 20 | 8 | 60 |
| 8.5×25×10D×75L | 8.5 | 25 | 10 | 75 |
| 9.0×25×10D×75L | 9.0 | 25 | 10 | 75 |
| 9.5×25×10D×75L | 9.5 | 25 | 10 | 75 |
| 10.0×25×12D×75L | 10.0 | 25 | 12 | 75 |
| 10.5×25×12D×75L | 10.5 | 25 | 12 | 75 |
| 11.0×28×12D×75L | 11.0 | 28 | 12 | 75 |
| 11.5×28×12D×75L | 11.5 | 28 | 12 | 75 |
| 12.0×30×12D×75L | 12.0 | 30 | 12 | 75 |
| 13.0×33×16D×100L | 13.0 | 33 | 16 | 100 |
| 14.0×40×16D×100L | 14.0 | 40 | 16 | 100 |
| 15.0×40×16D×100L | 15.0 | 40 | 16 | 100 |
| 16.0×40×16D×100L | 16.0 | 40 | 16 | 100 |
| 17.0×40×20D×100L | 17.0 | 40 | 20 | 100 |
| 18.0×40×20D×100L | 18.0 | 40 | 20 | 100 |
| 19.0×40×20D×100L | 19.0 | 40 | 20 | 100 |
| 20.0×40×20D×100L | 20.0 | 40 | 20 | 100 |
| 25.0×40×25D×100L | 25.0 | 40 | 25 | 100 |
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More information, please kindly contact us.
Best regards
Grewin carbide