Product Description:
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.
Features:
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.
Technical Parameters:
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
|
|
21.00
|
266.00
|
3.20
|
32.00
|
20.00
|
60.0
|
TOGT 10..
|
|
22.00
|
278.00
|
3.40
|
32.00
|
21.00
|
60.0
|
TOGT 11..
|
|
23.00
|
289.00
|
3.40
|
32.00
|
22.00
|
60.0
|
TOGT 11..
|
|
24.00
|
301.00
|
3.40
|
32.00
|
23.00
|
60.0
|
TOGT 11..
|
|
25.00
|
312.00
|
3.40
|
32.00
|
24.00
|
60.0
|
TOGT 11..
|
|
26.00
|
324.00
|
3.60
|
40.00
|
25.00
|
70.0
|
TOGT 12..
|
|
27.00
|
335.00
|
3.60
|
40.00
|
26.00
|
70.0
|
TOGT 12..
|
|
28.00
|
337.00
|
3.60
|
40.00
|
27.00
|
70.0
|
TOGT 12..
|
|
29.00
|
360.00
|
4.57
|
40.00
|
27.00
|
69.0
|
TOGT 13..
|
|
30.00
|
383.00
|
4.57
|
40.00
|
29.00
|
69.0
|
TOGT 13..
|
|
31.00
|
383.00
|
4.57
|
40.00
|
29.00
|
69.0
|
TOGT 13..
|
|
32.00
|
395.00
|
4.57
|
40.00
|
30.00
|
69.0
|
TOGT 13..
|
Applications:
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.
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