Product Name | Customized Tungsten Drilling Step Cutter CNC Slot Solid Carbide Drills |
Item No. | Standard |
Material | Tungsten Steel |
Product Type | Solid Carbide Drill Bits |
Coating | AlTiN/ TiSiN/ NACO/No Coating |
Helix Angle | 35 degree, 45 degree, 55 degree |
HRC | HRC55/60/65/68 |
Item | HRC55 | HRC60 | HRC65 | HRC68 |
Grade | SK35 | SK45 | AF308 (Japan) | THM-F (USA) |
Details | Grain Size:0.6um Co:10 % Flexural strength: 3800N/mm2 | Grain Size:0.4um Co:12 % Flexural strength: 4200N/mm2 | Grain Size:0.3um Co:8 % Flexural strength: 3800N/mm2 | Grain Size:0.4um Co:8% Flexural strength: 3800N/mm2 |
Item | AlTiN | TiSiN | NACO | NACO |
Hardness(HV) | 3200 | 3600 | 42(GPA) | 43(GPA) |
Thickness(UM) | 2.5-3 | 3 | 3 | 3 |
Oxidation Temp(°) | 900 | 1000 | 1200 | 1300 |
Friction Coeffient | 0.3 | 0.45 | 0.4 | 0.45 |
Color | Black | Copper | Blue | Black |