Basic Info.
Model NO.
All Sizes
Material
Solid Carbide, Tungsten Carbide
Certification
ISO 9001:2008, ISO 9001:2000, GS
Usage
Wood Drilling, PCB Drilling, Metal Drilling
Standard
SGS & CQC
Length
50mm-150mm, Customized
Cutting Form
Flat, Ball Nose, Corner Radius, Roughing
Flutes Number
2, 3, 4, 6
Flute Diameter
0.5mm-25mm, Customized
Brand
Gw
Sample
Avaiable
Delivery Time
20-25 Days
Shipment
FedEx, DHL, TNT, UPS, EMS, etc.
Trademark
GW
Transport Package
Standard Box
Specification
WC+Co
Origin
Zhuzhou
HS Code
8207709000
Model NO.
All Sizes
Material
Solid Carbide, Tungsten Carbide
Certification
ISO 9001:2008, ISO 9001:2000, GS
Usage
Wood Drilling, PCB Drilling, Metal Drilling
Standard
SGS & CQC
Length
50mm-150mm, Customized
Cutting Form
Flat, Ball Nose, Corner Radius, Roughing
Flutes Number
2, 3, 4, 6
Flute Diameter
0.5mm-25mm, Customized
Brand
Gw
Sample
Avaiable
Delivery Time
20-25 Days
Shipment
FedEx, DHL, TNT, UPS, EMS, etc.
Trademark
GW
Transport Package
Standard Box
Specification
WC+Co
Origin
Zhuzhou
HS Code
8207709000
Product Desciption
Metal Cutting Solid Tungsten Carbide Drill Bit
Micro grain raw material
Grain size: 0.4-0.6
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 |
Application
Used for cutting Carbon steel, Tool steel, Mould steel, Stainless steel, Titanium alloy, Copper, Cast Iron and Aluminum, 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 |
| AlTiN | Black | <600 °C | 3-5 | 3500 | 900 °C | 0.3 |
| TiSiN | Copper | <600 °C | 3-5 | 3500 | 1500 °C | 0.4 |
| NaNo | Blue | <600 °C | 3-5 | 3800 | 1200 °C | 0.4 |
| CrN | Silver Gray | <480 °C | 2-2.5 | 2500 | 700 °C | 0.3 |
Packing
Laser print brand name on cutter shank, 1 pcs in a plastic tube, 10 pcs per group.
Delivery time
Keep stock for regular types
Samples: 3 - 5 days
Regular orders: 7 - 10 days
Standard Sizes
| Diameter (mm) | cutting length | shank | shank length | Total length |
| L1 | d1 | L2 | L | |
| 3.30 | 20.00 | 6.00 | 36.00 | 62.00 |
| 3.50 | 20.00 | 6.00 | 36.00 | 62.00 |
| 3.70 | 20.00 | 6.00 | 36.00 | 62.00 |
| 3.80 | 24.00 | 6.00 | 36.00 | 66.00 |
| 3.90 | 24.00 | 6.00 | 36.00 | 66.00 |
| 4.00 | 24.00 | 6.00 | 36.00 | 66.00 |
| 4.20 | 24.00 | 6.00 | 36.00 | 66.00 |
| 4.25 | 24.00 | 6.00 | 36.00 | 66.00 |
| 4.50 | 24.00 | 6.00 | 36.00 | 66.00 |
| 4.60 | 24.00 | 6.00 | 36.00 | 66.00 |
| 4.90 | 28.00 | 6.00 | 36.00 | 66.00 |
| 5.00 | 28.00 | 6.00 | 36.00 | 66.00 |
| 5.10 | 28.00 | 6.00 | 36.00 | 66.00 |
| 5.30 | 28.00 | 6.00 | 36.00 | 66.00 |
| 5.50 | 28.00 | 6.00 | 36.00 | 66.00 |
| 5.80 | 28.00 | 6.00 | 36.00 | 66.00 |
| 5.90 | 28.00 | 6.00 | 36.00 | 66.00 |
| 6.00 | 28.00 | 6.00 | 36.00 | 66.00 |
| 6.50 | 34.00 | 8.00 | 36.00 | 79.00 |
| 6.70 | 34.00 | 8.00 | 36.00 | 79.00 |
| 6.80 | 34.00 | 8.00 | 36.00 | 79.00 |
| 7.00 | 34.00 | 8.00 | 36.00 | 79.00 |
| 7.30 | 41.00 | 8.00 | 36.00 | 79.00 |
| 7.40 | 41.00 | 8.00 | 36.00 | 79.00 |
| 7.50 | 41.00 | 8.00 | 36.00 | 79.00 |
| 7.80 | 41.00 | 8.00 | 36.00 | 79.00 |
| 7.90 | 41.00 | 8.00 | 36.00 | 79.00 |
| 8.00 | 41.00 | 8.00 | 36.00 | 79.00 |
| 8.10 | 47.00 | 10.00 | 40.00 | 89.00 |
| 8.20 | 47.00 | 10.00 | 40.00 | 89.00 |
| 8.30 | 47.00 | 10.00 | 40.00 | 89.00 |
| 8.40 | 47.00 | 10.00 | 40.00 | 89.00 |
| 8.50 | 47.00 | 10.00 | 40.00 | 89.00 |
| 8.60 | 47.00 | 10.00 | 40.00 | 89.00 |
| 8.70 | 47.00 | 10.00 | 40.00 | 89.00 |
| 8.80 | 47.00 | 10.00 | 40.00 | 89.00 |
| 8.90 | 47.00 | 10.00 | 40.00 | 89.00 |
| 9.00 | 47.00 | 10.00 | 40.00 | 89.00 |
| 9.30 | 47.00 | 10.00 | 40.00 | 89.00 |
| 9.50 | 47.00 | 10.00 | 40.00 | 89.00 |
| 9.70 | 47.00 | 10.00 | 40.00 | 89.00 |
| 9.80 | 47.00 | 10.00 | 40.00 | 89.00 |
| 10.00 | 47.00 | 10.00 | 40.00 | 89.00 |
| 10.30 | 55.00 | 12.00 | 45.00 | 102.00 |
| 10.40 | 55.00 | 12.00 | 45.00 | 102.00 |
| 10.50 | 55.00 | 12.00 | 45.00 | 102.00 |
| 10.60 | 55.00 | 12.00 | 45.00 | 102.00 |
| 10.80 | 55.00 | 12.00 | 45.00 | 102.00 |
| 11.00 | 55.00 | 12.00 | 45.00 | 102.00 |
| 11.10 | 55.00 | 12.00 | 45.00 | 102.00 |
| 11.20 | 55.00 | 12.00 | 45.00 | 102.00 |
| 11.50 | 55.00 | 12.00 | 45.00 | 102.00 |
| 11.80 | 55.00 | 12.00 | 45.00 | 102.00 |
| 11.90 | 55.00 | 12.00 | 45.00 | 102.00 |
| 12.00 | 55.00 | 12.00 | 45.00 | 102.00 |
| 12.10 | 60.00 | 14.00 | 45.00 | 107.00 |
| 12.20 | 60.00 | 14.00 | 45.00 | 107.00 |
| 12.50 | 60.00 | 14.00 | 45.00 | 107.00 |
| 12.60 | 60.00 | 14.00 | 45.00 | 107.00 |
| 13.00 | 60.00 | 14.00 | 45.00 | 107.00 |
| 13.10 | 60.00 | 14.00 | 45.00 | 107.00 |
| 13.50 | 60.00 | 14.00 | 45.00 | 107.00 |
| 14.00 | 60.00 | 14.00 | 45.00 | 107.00 |
| 14.50 | 65.00 | 16.00 | 48.00 | 115.00 |
| 14.60 | 65.00 | 16.00 | 48.00 | 115.00 |
| 15.00 | 65.00 | 16.00 | 48.00 | 115.00 |
| 15.20 | 65.00 | 16.00 | 48.00 | 115.00 |
| 15.50 | 65.00 | 16.00 | 48.00 | 115.00 |
| 15.60 | 65.00 | 16.00 | 48.00 | 115.00 |
| 16.00 | 65.00 | 16.00 | 48.00 | 115.00 |
| 16.50 | 73.00 | 18.00 | 48.00 | 123.00 |
| 16.80 | 73.00 | 18.00 | 48.00 | 123.00 |
| 17.00 | 73.00 | 18.00 | 48.00 | 123.00 |
| 17.50 | 73.00 | 18.00 | 48.00 | 123.00 |
| 17.80 | 73.00 | 18.00 | 48.00 | 123.00 |
| 18.00 | 73.00 | 18.00 | 48.00 | 123.00 |
| 18.50 | 79.00 | 20.00 | 50.00 | 131.00 |
| 18.80 | 79.00 | 20.00 | 50.00 | 131.00 |
| 19.00 | 79.00 | 20.00 | 50.00 | 131.00 |
| 19.50 | 79.00 | 20.00 | 50.00 | 131.00 |
| 19.80 | 79.00 | 20.00 | 50.00 | 131.00 |
| 20.00 | 79.00 | 20.00 | 50.00 | 131.00 |
| 20.50 | 93.00 | 25.00 | 56.00 | 151.00 |
| 21.00 | 93.00 | 25.00 | 56.00 | 151.00 |
| 21.50 | 93.00 | 25.00 | 56.00 | 151.00 |
| 22.00 | 93.00 | 25.00 | 56.00 | 151.00 |
| 22.50 | 96.00 | 25.00 | 56.00 | 153.00 |
| 23.00 | 96.00 | 25.00 | 56.00 | 153.00 |
| 23.50 | 96.00 | 25.00 | 56.00 | 153.00 |
| 24.00 | 96.00 | 25.00 | 56.00 | 153.00 |
| 24.50 | 96.00 | 25.00 | 56.00 | 153.00 |
| 25.00 | 96.00 | 25.00 | 56.00 | 153.00 |
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