Tungsten Carbide Gun Drill Rod for Precision Deep Hole Drilling Applications

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Tungsten Carbide Gun Drill Rod for Precision Deep Hole Drilling Applications

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Product Description

Basic Specifications

Standard

ISO

Customized

Material

Alloy

Application

Metal Cutting Machine, Metal Processing Machinery Parts

Product Name

Tungsten Carbide Hole Drilling Deep Hole Drill Gun

Other Name

Gun Drill

Key Words

Gun Drill, Deep Hole Drill

Application Type

for Deep Hole Drilling

Diameter

4~32mm

Length

to 2500mm

Surface

Coated or Without Coating

Transport Package

in Plastic Tube

Specification

customized

Origin

China

Production Capacity

2000 PCE/Month

Product Overview

Our Tungsten Carbide Gun Drill Rod is engineered for high-speed, deep-hole drilling in the toughest materials, including stainless steel, titanium, Inconel, hardened steel, and aerospace alloys. Designed for CNC machines, gun drilling systems, and precision machining, this drill rod delivers exceptional wear resistance, rigidity, and thermal stability, ensuring longer tool life and superior hole accuracy.

Key Features & Benefits

Ultra-Hard Tungsten Carbide (90-94 HRA) - Outperforms HSS and cobalt drills in hardness & durability.
High-Speed Deep Hole Drilling - Optimized for L/D ratios up to 100:1+ with minimal deflection.
Exceptional Wear & Heat Resistance - Reduces tool wear, even in high-temperature machining.
Precision-Ground Surface - Ensures straighter holes, tighter tolerances (±0.005mm), and superior surface finish.
Corrosion & Chemical Resistant - Ideal for coolant-heavy & harsh machining environments.
Compatible with Gun Drilling Machines - Works with BTA, ejector, and single-lip drilling systems.

Gun drill Materials Series - I

Type	D Tol. of D (mm)	b1 Tol. of b1 (mm)	b2 Tol. of b2 (mm)	L Tol. of L (mm)
Type	BФ8.0Ф1.8Ф1.5*340	+0.45/+0.70	-0.15/+0.15	-0.15/+0.15	0/+6
BФ8.5Ф1.9Ф1.5*340	+0.35/+0.60	-0.15/+0.15	-0.15/+0.15	0/+6
BФ9.0Ф2.1Ф1.65*340	+0.45/+0.70	-0.15/+0.15	-0.15/+0.15	0/+6
BФ9.5Ф2.1Ф1.65*340	+0.35/+0.60	-0.15/+0.15	-0.15/+0.15	0/+6
BФ10.0Ф2.3Ф1.9*340	+0.45/+0.70	-0.20/+0.20	-0.20/+0.20	0/+6
BФ10.5Ф2.3Ф1.9*340	+0.35/+0.65	-0.20/+0.20	-0.20/+0.20	0/+6
BФ11.0Ф2.4Ф2.0*340	+0.45/+0.75	-0.20/+0.20	-0.20/+0.20	0/+6
BФ11.5Ф2.4Ф2.0*340	+0.35/+0.65	-0.20/+0.20	-0.20/+0.20	0/+6
BФ12.0Ф2.5Ф2.2*340	+0.45/+0.75	-0.20/+0.20	-0.20/+0.20	0/+6
BФ12.5Ф2.5Ф2.2*340	+0.35/+0.65	-0.20/+0.20	-0.20/+0.20	0/+6
BФ13.0Ф3.2Ф2.6*340	+0.45/+0.80	-0.20/+0.20	-0.20/+0.20	0/+6
BФ14.0Ф3.5Ф2.8*340	+0.45/+0.80	-0.25/+0.25	-0.25/+0.25	0/+6
BФ14.5Ф3.5Ф2.8*340	+0.35/+0.70	-0.25/+0.25	-0.25/+0.25	0/+6
BФ15.0Ф3.8Ф3.0*340	+0.45/+0.80	-0.25/+0.25	-0.25/+0.25	0/+6
BФ15.5Ф3.8Ф3.0*340	+0.35/+0.70	-0.25/+0.25	-0.25/+0.25	0/+6
BФ16.0Ф4.0Ф3.2*340	+0.45/+0.80	-0.25/+0.25	-0.25/+0.25	0/+6

Gun drill Materials Series - II

Type	D Tol. of D (mm)	b1 Tol. of b1 (mm)	b2 Tol. of b2 (mm)	L Tol. of L (mm)
Type	BФ8.0Ф1.8Ф1.5*35	+0.45/+0.70	-0.15/+0.15	-0.15/+0.15	0/+3
BФ8.5Ф1.9Ф1.5*35	+0.35/+0.60	-0.15/+0.15	-0.15/+0.15	0/+3
BФ9.0Ф2.1Ф1.65*35	+0.45/+0.70	-0.15/+0.15	-0.15/+0.15	0/+3
BФ9.5Ф2.1Ф1.65*35	+0.35/+0.60	-0.15/+0.15	-0.15/+0.15	0/+3
BФ10.0Ф2.3Ф1.9*40	+0.45/+0.70	-0.20/+0.20	-0.20/+0.20	0/+3
BФ10.5Ф2.3Ф1.9*40	+0.35/+0.65	-0.20/+0.20	-0.20/+0.20	0/+3
BФ11.0Ф2.4Ф2.0*40	+0.45/+0.75	-0.20/+0.20	-0.20/+0.20	0/+3
BФ11.5Ф2.4Ф2.0*40	+0.35/+0.65	-0.20/+0.20	-0.20/+0.20	0/+3
BФ12.0Ф2.5Ф2.2*40	+0.45/+0.75	-0.20/+0.20	-0.20/+0.20	0/+3
BФ12.5Ф2.5Ф2.2*40	+0.35/+0.65	-0.20/+0.20	-0.20/+0.20	0/+3
BФ13.0Ф3.2Ф2.6*40	+0.45/+0.80	-0.20/+0.20	-0.20/+0.20	0/+3
BФ13.5Ф3.2Ф2.6*40	+0.35/+0.70	-0.20/+0.20	-0.20/+0.20	0/+3
BФ14.0Ф3.5Ф2.8*40	+0.45/+0.80	-0.25/+0.25	-0.25/+0.25	0/+3
BФ14.5Ф3.5Ф2.8*40	+0.35/+0.70	-0.25/+0.25	-0.25/+0.25	0/+3
BФ15.0Ф3.8Ф3.0*40	+0.45/+0.80	-0.25/+0.25	-0.25/+0.25	0/+3
BФ15.5Ф3.8Ф3.0*40	+0.35/+0.70	-0.25/+0.25	-0.25/+0.25	0/+3

Applications

Aerospace: Turbine blades, landing gear, fuel systems.
Oil & Gas: Deep-well drilling, valve components.
Automotive: Fuel injectors, transmission shafts.
Medical: Surgical implants, precision instruments.
Defense: Barrel drilling, armor-piercing applications.
Mold & Die Making: Coolant channels, complex geometries.

Technical Specifications

Material

Premium Tungsten Carbide (WC-Co)

Hardness

90-94 HRA (Rockwell Scale)

Density

14-15 g/cm³

Thermal Conductivity

High (reduces heat buildup)

Surface Finish

Mirror-polished (Ra ≤ 0.2μm)

Standard Sizes

Ø3mm-Ø30mm (custom diameters available)

Length Options

300 mm - 1500 mm (extended lengths on request)

Tungsten Carbide Gun Drill Rod Dimensions

Tungsten Carbide Gun Drill Rod Cross Section

Why Choose Us

10x Longer Lifespan: Compared to standard HSS or cobalt drill rods.
Reduced Machining Time: Designed for higher feed rates & rotational speeds.
Minimal Runout & Vibration: Ensures ultimate precision and hole straightness.
Cost-Efficient Operation: Fewer tool changes translate to lower machine downtime.
ISO 9001 Certified: Rigorous quality control guarantees top-tier performance.

Tungsten Carbide Gun Drill Rod Quality Inspection

Frequently Asked Questions

What materials are these gun drill rods designed to machine?

Our premium tungsten carbide gun drill rods are specifically engineered for deep hole drilling in highly demanding materials including stainless steel, titanium alloys, Inconel, hardened steels, and complex aerospace superalloys.

Can I order custom diameters and custom lengths?

Yes. While our standard diameters range from 3mm to 30mm and standard lengths from 300mm to 1500mm, we offer customization options for dimensions up to 2500mm in length depending on your design requirements.

What are the primary benefits of using tungsten carbide over HSS?

Tungsten carbide offers exceptional hardness (90-94 HRA) and thermal stability, resulting in up to 10 times longer tool life, minimal vibration, straighter holes, and much faster processing speeds compared to High-Speed Steel (HSS).

Do these gun drill rods work with standard single-lip and BTA systems?

Yes, our drill rods are fully compatible with modern deep-hole machining equipment, including single-lip gun drills, BTA systems, and ejector drilling systems.

What level of surface finish is expected?

Our gun drills undergo precision grinding and mirror-polishing processes, achieving a superior surface finish quality of Ra ≤ 0.2μm to reduce friction and allow smoother chip evacuation.