Tungsten Carbide Left Drill with Coating HRC55 drill D4*25*50
Product Description:
1. Raw micro grain material, high hardness and T.R.S
a, Co: 10%,Wc:90%
b, TRS: >3600 N/mm2
c, HRA: 91.8-92.4, HRC:45-50/55-60/65/68
d, Grain size: 0.4-0.6μm
e, Helix angle: 30°-45 °
Diameter of cutting edge: 0.2-0.9mm; 1-20mm
Diameter of rods: 6-25mm
Total Length: 62mm-200mm
Cutting Form: Flat,Square,Ball nose, Ball, Corner Radius, Taper Flute, etc.
2. Application and usage
Suitable to cut Copper, Cast Iron, Carbon steel, Tool steel, Mould steel, Stainless steel, Plastic, Arcylic, etc.
3. Super coating
TiSiN TiAlN AlTiN TiCN or Blue Nano Coating
| Item | AlTiN | TiAiN | TiSiN | nAcO |
| Hardness(HV) | 3200 | 2800 | 3600 | 42(GPA) |
| Thickness(UM) | 2.5-3 | 2.5-3 | 3 | 3 |
| Oxidation Temp( ° ) | 900 | 800 | 1000 | 1200 |
| Friction | 0.3 | 0.3 | 0.45 | 0.4 |
| Color | Black | Violet | Copper | Blue |
☆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; 1-20 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 |
Introduction of the carbide materials of the End mill
| Carbide Grade | Technical Details of tungsten carbide rod |
| 10U | Co:10% WC 89% rare element: 1% HRA: 90.5°Grain Size: 0.75um |
| 12U | Co:12% WC 85% rare element: 3% HRA: 92.5°Grain Size: 0.4um |
| K40 | Co:12% WC 84% rare element: 4% HRA: 93°Grain Size: 0.4um |
| K44 | Co:12% WC 84% rare element: 4% HRA: 93.5°Grain Size: 0.4um |
The materials to be cut
| Carbide Grade | HRC of End mill | Materials to be cut |
| 10U | HRC45-50 | For cutting the materials under HRC35 |
| 12U | HRC55-58 | For cutting the materials under HRC50 |
| K40 | HRC60-62 | For cutting the materials under HRC55 |
| K44 | HRC65-70 | For cutting the materials under HRC63 |
Corresponding Coating
| Carbide Grade | HRC of End mill | Corresponding Coating |
| 10U | HRC45-50 | AlTiN |
| 12U | HRC55-58 | TiAlN |
| K40 | HRC60-62 | TiSlN |
| K44 | HRC65-70 | Nano |
Introduction of carbide materials of the End mill
| AlTiN | TiAlN | TiSlN | Nano | |
| Hardness(HV) | 3200 | 2800 | 3600 | 42(GPA) |
| Thickness(UM) | 2.5-3 | 2.5-3 | 3 | 3 |
| Oxidation Temp(°) | 900 | 800 | 1000 | 1200 |
| Friction Coefficient | 0.3 | 0.3 | 0.45 | 0.4 |
| Color | Black | Violet | Copper | Blue |
☆Application
Used for cutting Carbon steel, Tool steel, Mould steel, Stainless steel, Titanium alloy, Copper, Cast Iron and Aluminium, etc.
Grinding equipment: , 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 |
☆Payment
T/T, Western Union, Paypal (Choose your convenient way)
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 |
Product Show:
01. Properly reducing the cutting speed and feed rate can prolong the trial life of the milling cutter.
02. When working, it is necessary to add cutting fluid to protect the cutting edge, which makes the cutting smoother.
03. When there is an oxide film or other hardened layer remaining on the surface of the work-piece, it can be removed by reversible milling.
What buyers need to know about end mill selection and operating instructions:
01. Before using the tool, please measure the tool deflection. If the tool deflection accuracy exceeds 0.01mm, please correct it before cutting.
02. The shorter the length of the end mill sticking out of the chuck, the better. If the end mill sticks out for a long time, it is necessary to reduce the rotational speed, feed rate or cutting amount.
03. During cutting, if abnormal vibration or sound occurs, please reduce the cutting speed and the cutting feed rate until the situation improves.
04. The steel cooling is preferably spray and air jet, which can effectively improve the use effect of the milling cutter.
Zhuzhou Grewin Tungsten Carbide Tools Co., Ltd has more than 20 years experience in carbide products manufacture. Grewin Carbide brand products are sold to more than 50 countries in the world, such as Europe, USA, south east Asia, middle east, south America, etc.
If you need any carbide products, I will be glad to send our offer.
Thank you.
Best Regards,
If you have any questions, please feel free to contact me.
