| Customization: | Available |
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| Customized: | Customized |
| Standard: | DIN |
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1.Imported ultra-fine grain raw material, provides better wear resistance and longer life to the drills.
2.The curved cutting edge reduces cutting forces, thereby decreasing the load on the tool and extending its lifespan.
3.The precise centering tip design ensures accurate and clean holes, leading to precise and dimensionally accurate results.
4.The advanced coating protects the drill from premature wear and maximizes its lifespan under various working conditions.
5.Diameter from 3 mm to 20 mm, suitable for different type of machining.
6.The drill impresses with its exceptional versatility and efficiency in processing a variety of materials, including steel, stainless steel, cast iron, heat-resistant super alloys, and titanium.
These outstanding features make BUYTOP drills the ideal choice for diverse industrial drilling applications where precision, efficiency, and durability are required.
| Brand | BUYTOP |
| Standard | DIN6535HA/DIN6537K |
| Drill type | Carbide twist drills |
| Max. drilling depth | 3xD 5xD 8xD 12xD 20xD |
| Helix angle | 30 Degree |
| Point Angle | 140 Degree |
| Coolant supply | External |
| Flutes | 2 Flutes, 3flutes available |
| Coating | AlTiN/TiSiN/NACO BLUE |
| Shank shape | Cylinder shank without clamping surface |
| Size Range | 3-20mm/Customization available |
| 3D External Cooling Twist Drills For Stainless Steel | ||||
| Cutting Dia D | Shank Dia d |
Cutting L Lc |
Cutting L L4 |
TL |
| 3 | 6 | 20 | 36 | 62 |
| 3.5 | 6 | 20 | 36 | 62 |
| 4 | 6 | 24 | 36 | 66 |
| 4.5 | 6 | 24 | 36 | 66 |
| 5 | 6 | 28 | 36 | 66 |
| 5.5 | 6 | 28 | 36 | 66 |
| 6 | 6 | 28 | 36 | 66 |
| 6.5 | 8 | 34 | 36 | 79 |
| 7 | 8 | 34 | 36 | 79 |
| 7.5 | 8 | 41 | 36 | 79 |
| 8 | 8 | 41 | 36 | 79 |
| 8.5 | 10 | 47 | 40 | 89 |
| 9 | 10 | 47 | 40 | 89 |
| 9.5 | 10 | 47 | 40 | 89 |
| 10 | 10 | 47 | 40 | 89 |
| 10.5 | 12 | 55 | 45 | 102 |
| 11 | 12 | 55 | 45 | 102 |
| 11.5 | 12 | 55 | 45 | 102 |
| 12 | 12 | 55 | 45 | 102 |
| 12.5 | 14 | 60 | 45 | 107 |
| 13 | 14 | 60 | 45 | 107 |
| 13.5 | 14 | 60 | 45 | 107 |
| 14 | 14 | 60 | 45 | 107 |
| 14.5 | 16 | 65 | 48 | 115 |
| 15 | 16 | 65 | 48 | 115 |
| 15.5 | 16 | 65 | 48 | 115 |
| 16 | 16 | 65 | 48 | 115 |
| 16.5 | 18 | 73 | 48 | 123 |
| 17 | 18 | 73 | 48 | 123 |
| 17.5 | 18 | 73 | 48 | 123 |
| 18 | 18 | 73 | 48 | 123 |
| 18.5 | 20 | 79 | 50 | 131 |
| 19 | 20 | 79 | 50 | 131 |
| 19.5 | 20 | 79 | 50 | 131 |
| 20 | 20 | 79 | 50 | 131 |
| 5D External Cooling Twist Drills For Stainless Steel | ||||
| Cutting Dia D | Shank Dia d |
Cutting L Lc |
Cutting L L4 |
TL |
| 3 | 6 | 28 | 36 | 66 |
| 3.5 | 6 | 28 | 36 | 66 |
| 4 | 6 | 36 | 36 | 74 |
| 4.5 | 6 | 36 | 36 | 74 |
| 5 | 6 | 44 | 36 | 82 |
| 5.5 | 6 | 44 | 36 | 82 |
| 6 | 6 | 44 | 36 | 82 |
| 6.5 | 8 | 53 | 36 | 91 |
| 7 | 8 | 53 | 36 | 91 |
| 7.5 | 8 | 53 | 36 | 91 |
| 8 | 8 | 53 | 36 | 91 |
| 8.5 | 10 | 61 | 40 | 103 |
| 9 | 10 | 61 | 40 | 103 |
| 9.5 | 10 | 61 | 40 | 103 |
| 10 | 10 | 61 | 40 | 103 |
| 10.5 | 12 | 71 | 45 | 118 |
| 11 | 12 | 71 | 45 | 118 |
| 11.5 | 12 | 71 | 45 | 118 |
| 12 | 12 | 71 | 45 | 124 |
| 12.5 | 14 | 77 | 45 | 124 |
| 13 | 14 | 77 | 45 | 124 |
| 13.5 | 14 | 77 | 45 | 124 |
| 14 | 14 | 77 | 45 | 124 |
| 14.5 | 16 | 83 | 48 | 133 |
| 15 | 16 | 83 | 48 | 133 |
| 15.5 | 16 | 83 | 48 | 133 |
| 16 | 16 | 83 | 48 | 133 |
| 16.5 | 18 | 93 | 48 | 143 |
| 17 | 18 | 93 | 48 | 143 |
| 17.5 | 18 | 93 | 48 | 143 |
| 18 | 18 | 93 | 48 | 143 |
| 18.5 | 20 | 101 | 50 | 153 |
| 19 | 20 | 101 | 50 | 153 |
| 19.5 | 20 | 101 | 50 | 153 |
| 20 | 20 | 101 | 50 | 153 |
| HRC | Coating | Color | HV | μm | Friction | The Max °C |
| HRC45 | AITin | black | 3300 | 1-4 | 0.7 | 850°C |
| HRC55 | TiSiN | bronze | 3400 | 1-4 | 0.7 | 900°C |
| HRC60 | AlCrSiN | black | 4000 | 1-7 | 0.35 | 1100°C |
| HRC65 | nACo 3 Blue | blue | 4500 | 1-7 | 0.45 | 1200°C |
Zhuzhou Buytop Tungsten Carbide Co., Ltd has more than 20 years' experience in manufacture, design and sale of various kinds of carbide products, especially carbide cutting tools and carbide non-standard shaped tools. The company has ISO 9001:2008 quality system, possesses advanced production equipment's, complete testing instruments, strong R&D center, and QC team. Over the decade, we have actively collaborated with researcher and university to enhance the carbide tools design and tool life, we have successfully helped our customer to reduce their cost and gain more market share with us. The company mission and vision are to help customer solve the business needs by providing One-Stop Procurement peace of mind solution with various tungsten carbide material and carbide tools to all customers all over the world.
1. Are you manufacturer or trading company?
We are professional manufacturer with more than 21 years experience in this field of carbide tools.
2. When can I get the price?
We usually quote within 24 hours after receiving your inquiry. If you need a quote urgently, please let us know in your email so we can prioritize your inquiry.
3. How to place an order?
1.Fill your Order List in our online Inquiry System.
2.Directly contact our salesperson by E-mail / Skype / Whats App, we will make a feedback to you ASAP after receive your order list.
4. What is your payment terms?
T/T, Western Union, Made-in-China assurance for different circumstances.
5. What's your delivery way?
Express delivery, DHL, TNT, FEDEX , EMS, air shipping, sea shipping are available for your request.
6. Do you offer OEM?
Yes, we do. We have laser machine lasering your logo and tool specification on the body of tools. Also, we can print customized on plastic boxes.
7. How about the delivery time?
Usually delivery time is 2~3 days after receiving the advance payment. For the customized product, 7-10 days after receiving the advance payment.
8. Can you send the product to our forwarder in China?
Yes, if you have a forwarder in China, we are happy to send the product to him/her.
9. What is the MOQ?
We have fixed MOQ for each of our products. But if you need less, it's okay, as we will change the price according to your quantity.
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