Halnn’s gun drills are the ultimate solution for precision deep hole machining. Designed for high efficiency, accuracy, and reliability, our gun drills are trusted across industries for producing straight, smooth, and accurate deep holes in various materials.
Indexable Gun Drill
Carbide Gun Drill
Brazed Gun Drill
Solid Carbide Gun Drill
A gun drill, also known as a deep hole drill, is a specialized tool designed for high-precision drilling, capable of producing deep holes with a diameter-to-length ratio of up to 1:250. The gun drill consists of three main components: the drill head, drill shaft, and drill shank, all of which are brazed together. The tool is characterized by a V-shped flute for external chip evacuation, a critical feature that ensures the efficient removal of chips during deep hole drilling.
Halnn provides various gun drills & deep hole drills and customized drilling solutions according to your actual requirements. View our wide variety of deep hole gun drilling tools.
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| Carbide brazed gundrill | Carbide gun drills | Carbide tip gun drills | Gun drills |
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| Brazed gun drills | Indexable gun drill | Indexable gun drills | Solid carbide gun drill |
Gun drills are available in various designs, each optimized for specific applications. Halnn offers a comprehensive range of gun drills, including indexable, carbide, brazed, and solid carbide gun drills, each with distinct advantages.
·Structure: Made entirely of solid carbide, including both the drill head and shaft.
·Advantages:Offers superior rigidity and reduced vibration, resulting in higher cutting reliability and extended tool life. Solid carbide gun drills are especially effective in high-strength materials and applications requiring ultra-precision.
·Applications: Best suited for high-precision applications such as medical device manufacturing, aerospace, and high-performance automotive components.
Specifications ·Ø0.5mm to Ø12mm ·Up to 100 x Ø drilling depth ·Higher feed rates ·More rigid / Less vibration ·Improved hole quality |  |
·Structure: Composed of a carbide drill head brazed to a steel shank.
·Advantages: Carbide gun drills are the most common, offering a balance between cost and performance. They are known for their durability and are suitable for a wide range of materials.
·Applications: Ideal for general-purpose deep hole drilling in materials like cast iron, aluminum, and steel.
Specifications ·Ø1.85mm to Ø51.20mm ·Drill to depth 40 x Ø in 1-pass on CNC machines ·Follow-on drilling to 80 & 120 x Ø depths ·Use with neat oil, solubles & MQL ·Customised to suit applications ·Options for: Point grind angles / Drill profiles / Support length / Carbide grades /Coatings ·Tool lengths made for all gun drilling machines |  |
·Structure: Features a modular design with replaceable carbide inserts and guide pads.
·Advantages: Ideal for large-diameter holes (above 12mm), the indexable gun drill allows for quick insert changes, minimizing downtime. The indexable design enhances cutting efficiency, making it suitable for high-speed machining.
·Applications: Used in automotive, aerospace, and heavy machinery industries.
Specifications ·Ø12mm to Ø135mm ·Steel tube shank design ·Drill up to 40 x Ø in a single pass ·No drill regrinding required |  |
Gun drills offer numerous advantages over conventional drilling methods, particularly in deep hole drilling scenarios. Here’s why Halnn’s gun drills stand out:
Gun drills are designed to produce holes with exceptional accuracy, meeting tight tolerances and ensuring consistent results.
The V-shaped flute design allows for efficient external chip evacuation, preventing blockages and reducing the risk of tool failure.
High-quality materials and advanced manufacturing processes extend the life of Halnn’s gun drills, reducing the need for frequent replacements.
Suitable for a wide range of materials and applications, from soft metals like aluminum to hard alloys used in aerospace.
1. The feed can be increased by 2.5 times to achieve higher production efficiency.
2. Special coating insert with 3-corners cutting edge fits with coated guide bar, to achieve higher tool life.
1. Better chip breaking effect, achieve good chip removal.
2. Ensure good hole straightness and surface roughness.
3. Insert replaceable, reduce cost.
4. Without tools regrinding, reduce management costs.
The deep hole processing
Diameter of tool: Φ12- Φ40mm
Hole roughness:<Ra2
Processing depth: Meet customer requirements
Applicable equipment: lathe, CNC, gun drill machine
Application: mould, automotive, heavy industry, power generation and other fields
Mode: Type: Application:
Mode:CBN Inserts Type:BN-S300,BN-S30 Application:Brake Disc/Drum
Mode:CBN tools Type:Solid CBN Insert,PCBN Insert Application:hardened steel
Mode:RNMN RCMX-V RCMX-Y PCD Type:BN-K1,BN-S20,CDW010 Application:Rollers
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