7D Tungsten Steel Spiral Flute Indexable Carbide Drill Bit Deep
Hole Drilling Tools
Product Description:
Independent Drill Tip with Good Integrity and High Precision
Our drill tip boasts an independent design that promotes excellent
integrity when used. It also ensures the precision and smoothness
of any hole wall that it makes after processing. This design
guarantees maximum efficiency for your drilling tasks.
Internal Cooling Structure for Fully Cooled Drill Tip During
Processing
In addition to its excellent design, our drill features an internal
cooling structure specially designed to keep the drill tip at an
optimal temperature during processing. This cooling structure
ensures that the drill tip stays cool at all times, mitigating the
risks of overheating and damage. With our drill, you can work with
peace of mind, knowing that it will maintain its precision and
performance for longer.
Features:
- Product Name: Crown Drill Bit
- Type: Indexable Drill Bit
- Material: Tungsten Steel
- Country Of Origin: China
- Flute Type: Spiral
- Length: 7D
- Other Names: Crown Twist drill, Combination Crown Drill
Technical Parameters:
| Product Name | Combination Crown Drill |
| Type | Indexable Drill Bit |
| Length | 7D |
| Flute Type | Spiral |
| Material | Tungsten Steel |
| Country Of Origin | China |
| Application | Metal Drilling |
| Number Of Pieces | 1 |
Applications:
Hole making refers to the process of drilling or cutting a hole
into a material, such as metal or wood. This process is commonly
used in manufacturing and construction industries to create holes
for various purposes, such as installation of screws or bolts,
creation of openings for pipes or wires, or simply for decorative
purposes.
The hole making process can vary depending on the material being
worked on and the type of hole being created. For example, a drill
bit may be used to create a small hole in metal, while a saw may be
used to create a larger opening in wood. In addition to these
methods, there are also specialized hole making tools, such as hole
punches or reamers, that are designed for specific applications.
Accuracy and precision are crucial factors in hole making, as even
slight deviations can affect the functionality and integrity of the
finished product. Therefore, it is important for professionals in
these industries to have the necessary knowledge and skills to
properly perform hole making operations.
Product Specifications:
| Item.No | D(mm) | D Max(mm) | L1(mm) | DS(mm) | L2(mm) |
| BBS125D7W16 | 12.5 | 13 | 91 | 16 | 45 |
| BBS130D7W16 | 13 | 13.5 | 91 | 16 | 45 |
| BBS140D7W16 | 14 | 14.5 | 98 | 16 | 45 |
| BBS145D7W16 | 14.5 | 14.5 | 98 | 16 | 45 |
| BBS150D7W20 | 15 | 15.5 | 105 | 20 | 50 |
| BBS155D7W20 | 15.5 | 15.8 | 105 | 20 | 50 |
| BBS160D7W20 | 16 | 16.99 | 112 | 20 | 50 |
| BBS170D7W20 | 17 | 18 | 119 | 20 | 50 |
| BBS180D7W20 | 18 | 18 | 126 | 20 | 50 |
| BBS190D7225 | 19 | 19.99 | 133 | 25 | 56 |
| BBS200D7W25 | 20 | 20.99 | 140 | 25 | 56 |
| BBS210D7W25 | 21 | 22 | 147 | 25 | 56 |
| BBS220D7W25 | 22 | 22 | 154 | 25 | 56 |
| BBS230D7W25 | 23 | 24 | 161 | 25 | 56 |
| BBS240D7W25 | 24 | 24 | 168 | 25 | 56 |
| BBS250D7W32 | 25 | 26 | 175 | 32 | 60 |
| BBS260D7W32 | 26 | 26 | 182 | 32 | 60 |
| BBS270D7W32 | 27 | 28 | 189 | 32 | 60 |
| BBS280D7W32 | 28 | 28 | 196 | 32 | 60 |
| BBS290D7W32 | 29 | 30 | 203 | 32 | 60 |
| BBS300D7W32 | 30 | 30 | 210 | 32 | 60 |
| BBS310D7W32 | 31 | 32 | 217 | 32 | 60 |
| BBS320D7W32 | 32 | 32 | 224 | 32 | 60 |
| BBS330D7W40 | 33 | 33.99 | 231 | 40 | 70 |
| BBS340D7W40 | 34 | 34.99 | 238 | 40 | 70 |
| BBS350D7W40 | 35 | 36 | 245 | 40 | 70 |
| BBS360D7W40 | 36 | 36 | 252 | 40 | 70 |
| BBS370D7W40 | 37 | 37 | 259 | 40 | 70 |
| BBS380D7W40 | 38 | 38 | 266 | 40 | 70 |
| BBS390D7W40 | 39 | 39 | 273 | 40 | 70 |
| BBS400D7W40 | 40 | 40 | 280 | 40 | 70 |
Carbide Insert For Crown Drill
Diameter Range: 12mm ~51mm
Triple Positioning structure to improve drilling stability
