Widely Used Straight Shank Gun Drills High Accuracy With Long Tool Life

Product Description:

A Gun Drill is a special type of drill used for making deep, precise holes, originally developed for drilling gun barrels — hence the name. It is widely used in industries like automotive, aerospace, mold making, and medical devices.

• Single Cutting Edge: Simplifies chip removal and reduces vibration.
• Guide Pads: Help maintain straightness and improve surface finish.
• Internal Coolant Channel: High-pressure coolant flows through the tool to cool and remove chips.
• Long, Thin Drill Tube: Ideal for deep holes — up to 100 times the diameter or more.

• Excellent for deep hole drilling
• Produces high-precision holes with smooth surfaces
• Efficient chip evacuation with internal coolant
• Commonly used for gun barrels, engine parts, molds, and surgical tools

Features:

Advantages of Gun Drills

Excellent Deep Hole Capability

Gun drills have the ability to drill holes over 100 times the diameter (D), making them ideal for deep, narrow, and precision bores.

High Hole Accuracy

They offer superior levels of straightness, roundness, and coaxiality, typically achieving IT8–IT10 tolerance levels.

Smooth Surface Finish

Gun drills can produce surface roughness as low as Ra 0.4–1.6 µm, reducing the need for additional reaming or honing.

Efficient Chip Removal

The internal high-pressure coolant flushes chips out smoothly, preventing clogging and overheating during drilling.

Stable and Low Vibration Drilling

Guide pads help stabilize the tool and reduce deflection, making gun drills suitable for long and precise holes.

Long Tool Life (with proper use)

When used with correct speeds, feeds, and coolant, gun drills can maintain sharpness over long runs. They are available in carbide-tipped or solid carbide options.

Applicable to Various Materials

Gun drills are effective on a wide range of materials, including steel, aluminum, copper, titanium, plastic, and other metals or composites.

Automation-Friendly

Gun drills can be used in CNC machines, gun drilling machines, or modified lathes, making them suitable for automated manufacturing processes.

Technical Parameters:

Applications:

Gun drills are used in various industries wherever deep, straight, and accurate holes are required. Some common applications include:

• Firearms Industry : Gun barrels are the original use of gun drills. They require extremely straight, high-precision bores.
• Automotive Industry : Gun drills are used in engine components such as crankshafts, camshafts, and connecting rods. They are also applied in fuel system parts like injectors, valve bodies, and oil passages, as well as in transmission and hydraulic systems for precision deep bores.
• Aerospace Industry : Gun drills are utilized in aerospace for hydraulic manifolds, landing gear parts, and structural components that require lightweight deep bores.

Mold and Die Making: Gun drills are employed in creating cooling channels in injection molds or die-casting tools to ensure accurate and efficient heat dissipation paths.

Medical Devices: Gun drills are used in the production of bone drills, cannulas, and needle tubes, providing precision small-diameter, high-quality holes.

Hydraulics & Pneumatics: Gun drills are essential in creating valve bodies, cylinders, and pressure blocks that require precise axial bores for fluid control.

General Manufacturing: Gun drills are suitable for any component that needs a deep, accurate, and clean hole in metal, plastic, or composite materials.