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Ningbo Lianchuang Hewo Precision Tools Co., Ltd
2 Years
| Ask Lasest Price | |
| Brand Name : | ARNOLD |
| Certification : | ISO9001:2000 |
| Price : | 40—300 USD |
| Delivery Time : | 7-10day |
| Supply Ability : | 1000000 Piece/Pieces per Month |
| Model Number : | Spare Parts |
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.
| 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 |
Diameter Range(mm) | Insert | Solid Carbide Guide Pad |
14.00-15.99 | TOGT 07.. | GPS-05-18-060 |
16.00-18.00 | TOGT 08.. | GPS-05-18-075 |
18.01-20.00 | TOGT 09.. | GPS-06-20-085 |
20.01-21.00 | TOGT 10.. | GPS-06-20-085 |
21.01-21.99 | TOGT 10.. | GPS-06-20-100 |
22.00-25.00 | TOGT 11.. | GPS-06-20-100 |
25.01-28.00 | TOGT 12.. | GPS-06-20-120 |
28.01-29.99 | TOGT 13.. | GPS-06-20-120 |
30.00-32.00 | TOGT 13.. | GPS-07-20-120 |
32.01-39.00 | TOGT 14.. | GPS-07-20-120 |
39.01-40.00 | TOGT 14.. | GPS-08-25-155 |
Common Applications
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