Factory wholesale 4 Inch Step Drill Bit - Carbide Twisted Drill Bits Ideal for machining most steels – MSK
Factory wholesale 4 Inch Step Drill Bit - Carbide Twisted Drill Bits Ideal for machining most steels – MSK Detail:

1.Designed for drilling abrasive materials when drilling accuracy must be maintained
2.Can be used in high temperature drilling applications
3.Used on materials such as cast iron, non-ferrous alloys, high silicon aluminum, copper, plastics, bronze, hard rubber, plexiglass, and other similar materials
4.Solid carbide tools offer long tool life and faster cutting speeds than other substrates, but are more brittle
5.Must be used with a rigid tool-holding systems.

| Handle type | Straight handle |
| Workpiece Material | Ordinary steel / high hardness steel / cast iron / aluminum / copper / graphite / resin |
| Tool material | carbide alloy |
| Coating | Yes |
| Oil holes | No |
| Brand | MSK |
Advantage:
1.Excellent quality with competitive price.
2.Short delivery date within one week.
3.We can provide custom tools as per customers’need.from coating,flute,Helix angle,to cutting length,total length.
4.Heavy duty operation end mills-Unequalled Indexing,Asymmetric helix angle.
5.Anti-Vibration,Providing smooth and steady chip evaluation.
| Flute Diameter D | Flute Length L1 | Shank Diameter d | Length L |
| 4.0 | 24 | 6 | 66 |
| 4.5 | 24 | 6 | 66 |
| 5.0 | 28 | 6 | 66 |
| 5.5 | 28 | 6 | 66 |
| 6.0 | 28 | 6 | 66 |
| 6.5 | 34 | 8 | 79 |
| 7.0 | 41 | 8 | 79 |
| 7.5 | 41 | 8 | 79 |
| 8.0 | 41 | 8 | 79 |
| 8.5 | 47 | 10 | 89 |
| 9.0 | 47 | 10 | 89 |
| 9.5 | 47 | 10 | 89 |
| 10.0 | 47 | 10 | 89 |
| 10.5 | 55 | 12 | 102 |
| 11.0 | 55 | 12 | 102 |
| 11.5 | 55 | 12 | 102 |
| 12.0 | 55 | 12 | 102 |
| 12.5 | 60 | 14 | 107 |
| 13.0 | 60 | 14 | 107 |
| 13.5 | 60 | 14 | 107 |
| 14.0 | 60 | 14 | 107 |
| 14.5 | 65 | 16 | 115 |
| 15.0 | 65 | 16 | 115 |
| 15.5 | 65 | 16 | 115 |
| 16.0 | 65 | 16 | 115 |
| 16.5 | 73 | 18 | 123 |
| 17.0 | 73 | 18 | 123 |
| 17.5 | 73 | 18 | 123 |
| 18.0 | 73 | 18 | 123 |
| 18.5 | 79 | 20 | 131 |
| 19.0 | 79 | 20 | 131 |
| 19.5 | 79 | 20 | 131 |
| 20.0 | 79 | 20 | 131 |
Use:

Aviation Manufacturing
Machine Production
Car manufacturer

Mold making

Electrical Manufacturing
Lathe processing
Product detail pictures:
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We support our prospective buyers with ideal top quality merchandise and superior level provider. Becoming the specialist manufacturer in this sector, we have now attained abundant practical expertise in producing and managing for Factory wholesale 4 Inch Step Drill Bit - Carbide Twisted Drill Bits Ideal for machining most steels – MSK , The product will supply to all over the world, such as: European, Russia, Melbourne, Based on our guiding principle of quality is the key to development, we continually strive to exceed our customers' expectations. As such, we sincerely invite all interested companies to contact us for future cooperation, We welcome old and new customers to hold hands together for exploring and developing; For more information, be sure to feel free to contact us. Thanks. Advanced equipment, strict quality control, customer-orientation service, initiative summary and improvement of defects and extensive industry experience enable us to guarantee more customer satisfaction and reputation which, in return, brings us more orders and benefits. If you are interested in any of our merchandise, make sure you feel free to contact us. Inquiry or visit to our company are warmly welcome. We sincerely hope to start a win-win and friendly partnership with you. You can see more details in our website.
This is a very professional and honest Chinese supplier, from now on we fell in love with the Chinese manufacturing.