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DESCRIPTION
Tungsten carbide twist drill bits are a tool to drill the round hole of the workpiece through its rotary cutting relative to the fixed axis. It is named because its chip-holding groove is spiral and looks like hemp. Spiral grooves have 2 grooves, 3 grooves or more, but 2 grooves are the most common. Twist drills can be clamped on manual and electric hand-held drilling tools or drilling machines, milling machines, lathes, and even machining centers. Tungsten steel bit is made of tungsten steel, which has higher processing hardness, but is more brittle than high-speed steel, and is easy to break when used improperly.
1. Anti-broken Heat Resistance And Impact Resistance: Made by ultra micro-grain raw material imported from Germany, improve heat resistance and impact resistance
2. Chipping Removal Effect: Slot with big capacity, efficient chipping removal in high-speed cutting
3. Improve Quality Of Surface: Special design of cutting edge, decreasing of resistance
SPECIFICATION
| ITEM | SPECIFICATION | DIAMETER | TOTAL LENGTH | FLUTE LENGTH | Shank Length |
| D2103-LH-3D | D3-D3.7 | 6 | 62 | 20 | 36 |
| D2103-LH-3D | D4-D4.7 | 6 | 66 | 24 | 36 |
| D2103-LH-3D | D4.8-D6 | 6 | 66 | 28 | 36 |
| D2103-LH-3D | D6.1-D7 | 8 | 79 | 34 | 36 |
| D2103-LH-3D | D7.1-D8 | 8 | 79 | 41 | 36 |
| D2103-LH-3D | D8.1-D10 | 10 | 89 | 47 | 40 |
| D2103-LH-3D | D10.3-D12 | 12 | 102 | 55 | 45 |
| D2103-LH-3D | D12.1-D14 | 14 | 107 | 60 | 45 |
| D2103-LH-3D | D14.1-D16 | 16 | 115 | 65 | 45 |
| D2103-LH-3D | D16.1-D18 | 18 | 123 | 73 | 50 |
| D2103-LH-3D | D18.1-D20 | 20 | 131 | 79 | 50 |
| D2103-LH-5D | D3-D3.7 | 6 | 66 | 28 | 36 |
| D2103-LH-5D | D4-D4.7 | 6 | 74 | 36 | 36 |
| D2103-LH-5D | D4.8-D6 | 6 | 82 | 44 | 36 |
| D2103-LH-5D | D6.1-D8 | 8 | 91 | 53 | 36 |
| D2103-LH-5D | D8.1-D10 | 10 | 103 | 61 | 40 |
| D2103-LH-5D | D10.3-D12 | 12 | 118 | 71 | 45 |
| D2103-LH-5D | D12.1-D14 | 14 | 124 | 77 | 48 |
| D2103-LH-5D | D14.1-D16 | 16 | 133 | 83 | 48 |
| D2103-LH-5D | D16.1-D18 | 18 | 143 | 93 | 48 |
| D2103-LH-5D | D18.1-D20 | 20 | 153 | 101 | 50 |
1) When can I get the price?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.
2) How can I get a sample to check your quality?
After price confirmation, you can require samples to check our quality.
3) How long can I expect to get the sample?
After you pay the sample charge and send us confirmed files, the samples will be ready for delivery in 3-7 days. The samples will be sent to you via express and arrive in 3-5 workdays. You can use your own express account or prepay us if you do not have an account.
4) How long does the whole procedure being worked out?
After you place an order, the production handling time is about 20 days. We need 5 days to prepare all the stuff then 15 days for manufacturing.
5) What about the transportation and delivery date?
Normally we use shipment to transport the goods. It is about 25-40 days. It also depends on which country and port you are in. It could be shorter if you need to send the goods like Asian. If there are some emergencies we can send the goods via air express, as long as you afford the traffic expense.
6) Are you a trading company or manufacturer?
We are a professional manufacturer.
7) Where is your factory located?
We are located in Xixiashu Town, New North District, Changzhou City, Jiangsu, China.
8) How about your stock?
We have large quantity products in stock, regular types and sizes are all in stock.
9) Is free shipping possible?
We don't offer a free shipping service. We can have a discount if you buy a large number of products.
Pemasok dengan izin usaha terverifikasi
Pemasok yang Diaudit 
