Ningbo Lianchuang Hewo Precision Tools Co., Ltd
| Packaging Details | standard packaging |
| Delivery Time | 7-10day |
| Supply Ability | 1000000 Piece/Pieces per Month |
| Accuracy | ±0.001 Inch |
| Application | Deep Hole Drilling |
| Coating | TiN, TiCN, TiAlN, Or TiAlCrN |
| Shank Type | Straight Shank |
| Coolant Hole | Available |
| Cutting Direction | Right Hand |
| Brand Name | ARNOLD |
| Place of Origin | China |
| Certification | ISO9001:2000 |
View Detail Information
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Product Specification
| Packaging Details | standard packaging | Delivery Time | 7-10day |
| Supply Ability | 1000000 Piece/Pieces per Month | Accuracy | ±0.001 Inch |
| Application | Deep Hole Drilling | Coating | TiN, TiCN, TiAlN, Or TiAlCrN |
| Shank Type | Straight Shank | Coolant Hole | Available |
| Cutting Direction | Right Hand | Brand Name | ARNOLD |
| Place of Origin | China | Certification | ISO9001:2000 |
| High Light | TiAlN Coated Aerospace Gun Drill ，TiAlN Coated Gun Barrel Drill Bit ，100×D Gun Barrel Drill Bit | ||
A Gun Drill is a specialized deep hole drilling tool originally developed for manufacturing gun barrels—hence the name. It is designed to drill very deep and precise holes with excellent straightness, roundness, and surface finish.
Gun drills are widely used in industries like aerospace, automotive, mold making, medical devices, and hydraulics.
Key Features
Deep Hole Capability:
Capable of drilling depths exceeding 100 times the diameter (100×D) or more.
High Precision:
Excellent straightness, roundness, and surface finish.
Single-Flute Design:
Easier chip evacuation, though it requires slower feed rates.
Internal Coolant Flow:
Enables continuous cutting and efficient chip removal.
Comparison with Other Drilling Methods
| Feature | Gun Drill | Twist Drill | BTA Drill |
|---|---|---|---|
| Deep Hole Capability | Excellent (>100×D) | Limited (<5–10×D) | Superior (>150×D) |
| Hole Quality | High | Moderate | High |
| Chip Removal | Internal Coolant | External Coolant | Dual Flow (ID/OD) |
| Cost | Medium | Low | High |
|
**DC** |
***LF*** |
**PL** |
DCONMS |
**BD** |
**LS** |
Insert |
|
14.00 |
261.00 |
1.95 |
25.00 |
13.50 |
56.0 |
TOGT 07.. |
|
15.00 |
278.00 |
1.95 |
25.00 |
14.50 |
56.0 |
TOGT 07.. |
|
16.00 |
209.00 |
2.20 |
25.00 |
15.50 |
56.0 |
TOGT 08.. |
|
16.50 |
294.00 |
2.20 |
25.00 |
15.50 |
56.0 |
TOGT 08.. |
|
17.00 |
220.00 |
2.20 |
25.00 |
16.20 |
56.0 |
TOGT 08.. |
|
17.50 |
310.00 |
2.20 |
25.00 |
16.20 |
56.0 |
TOGT 08.. |
|
18.00 |
232.00 |
2.20 |
25.00 |
16.20 |
56.0 |
TOGT 08.. |
|
18.50 |
327.00 |
3.00 |
25.00 |
17.20 |
56.0 |
TOGT 09.. |
|
19.00 |
243.00 |
3.00 |
25.00 |
18.20 |
56.0 |
TOGT 09.. |
|
19.50 |
343.00 |
3.00 |
25.00 |
18.20 |
56.0 |
TOGT 09.. |
|
20.00 |
255.00 |
3.00 |
32.00 |
19.00 |
60.0 |
TOGT 09.. |
Common Applications
Firearm Barrels:
The original application.
Automotive Industry:
Used for crankshafts, fuel injectors, valve bodies, etc.
Aerospace Components:
Fuel lines, hydraulic manifolds, and structural elements.
Mold Making:
Cooling channels in injection molds.
Medical Devices:
Such as surgical tools, bone drills, and cannulas.
Company Details
Business Type:
Manufacturer
Year Established:
2016
Total Annual:
6000000-8000000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Ningbo Lianchuang Hewu Precision Tools Co., Ltd. specializes in providing comprehensive solutions for precision cutting technology. We offer customers high-quality metal cutting tools, including indexable inserts, carbide cutting tools, PCD cutting tools, as well as design development and technical ... Ningbo Lianchuang Hewu Precision Tools Co., Ltd. specializes in providing comprehensive solutions for precision cutting technology. We offer customers high-quality metal cutting tools, including indexable inserts, carbide cutting tools, PCD cutting tools, as well as design development and technical ...
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