Single Flute Carbide Tip Deep Hole Gun Drill

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Single Flute Carbide Tip Deep Hole Gun Drill

Customization:	Available
Customized:	Customized
Standard:	DIN

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Product Description

Product Overview

Model NO. 8*23*35*70

Length Stub-length

Type Gun Drill Bit

Material Solid Carbide

Usage Metal Drilling

Transport Package Cartoon

Specification D8.00mm*1000mm

Origin China

HS Code 82075090

Production Capacity 50000PCS/Year

Our Gundrill System represents the pinnacle of deep hole drilling technology. Engineered for unmatched precision, efficiency, and reliability, it is designed to produce accurate, straight, and finely finished holes of exceptional depth-to-diameter ratios in a single pass.

Ideal for demanding applications in aerospace, automotive, medical, mold & die, and energy industries, this system eliminates the need for secondary operations, saving time and cost while delivering superior quality.

Each Gundrill is specified based on your exact material, hole diameter, depth, and machine setup. We provide comprehensive technical support, including parameter optimization and troubleshooting.

Technical Specifications

Category	Feature	Details
Tool Design	Type	Single-Lip, Internal Coolant-Flush
	Shank Styles	Standard, Weldon, V-Flange, Special
	Cutting Head Material	Premium Micro-Grain Carbide
Coatings	Standard Coating	Titanium Nitride (TiN)
Coatings	Premium Coatings	Titanium Aluminum Nitride (TiAlN), Amorphous Diamond (AD)
Diameter Range	Standard Range	1.5 mm to 40 mm (0.059" to 1.575")
Diameter Range	Extended Range	Available up to 50 mm (2.0") on request
Depth Capability	Typical Max Depth	Up to 300 x Diameter (Standard)
Depth Capability	Special Applications	Capable of exceeding 400 x Diameter
Coolant Pressure	Recommended Operating Pressure	20 - 70 bar (300 - 1000 psi)
Coolant Pressure	Critical Requirement	High-pressure, high-flow coolant system mandatory
Tolerances	Diameter Tolerance	Standard: ±0.02 mm (±0.0008")
Tolerances	Hole Straightness	Typically 0.001 mm per mm (0.001 in per in) of depth
Surface Finish	Typical Achievable Finish	0.8 - 4.0 µm Ra (32 - 125 µin Ra)
Workpiece Materials	Commonly Drilled	Alloy Steels, Stainless Steels, Inconel, Titanium, Aluminum, Copper Alloys, Pre-hardened Molds (up to 50 HRC)
Machine Compatibility	Required Equipment	Dedicated Gundrilling Machine, Deep Hole Drilling Attachment, or CNC with high-pressure through-spindle coolant (TSC)

Single Flute Carbide Tip Deep Hole Gun Drill Detail 1

Single Flute Carbide Tip Deep Hole Gun Drill Detail 2

Technical Capabilities & Manufacturing

Various gun drilling tools and machines are developed to meet the specific requirements of the deep hole processing industry. Standard and customized tools can be configured to address non-standard drilling operations and demanding specifications.

The gun drill selection includes welded single-edge and double-edge gun drills, integral alloy small diameter gun drills, and indexable carbide blade gun drills, covering diameters from 1.00 mm up to 65 mm. Additional options include BTA drill bits, single-pipe drills, jet-suction drills, and coordinate-controlled gun drilling and deep-hole machinery support.

Industry Applications

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Aerospace Fuel injector nozzles, hydraulic actuator barrels, landing gear components.
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Automotive Fuel rail systems, injection lines, shock absorber cylinders, turbocharger shafts.
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Medical Surgical tool barrels, implant cannulations, needle manufacturing.
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Mold & Die Conformal cooling channels, ejector pin holes, waterline drilling.
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Oil & Gas Precision ports in valves, manifolds, and downhole tooling.

Frequently Asked Questions (FAQ)

What is the typical diameter range and depth capability of these gun drills?

Our standard diameter range is 1.5 mm to 40 mm (0.059" to 1.575"), and we can extend up to 50 mm (2.0") on request. The typical maximum depth capability reaches up to 300 times the diameter for standard applications, and can exceed 400 times the diameter for special applications.

What coolant pressure is required to operate the Gundrill System safely?

The recommended operating coolant pressure is between 20 to 70 bar (300 to 1000 psi). A high-pressure, high-flow coolant system is a mandatory requirement to ensure proper chip evacuation and heat dissipation.

Which materials can be drilled with these carbide gun drills?

These drills are optimized for a wide range of workpiece materials, including Alloy Steels, Stainless Steels, Inconel, Titanium, Aluminum, Copper Alloys, and Pre-hardened Molds with a hardness of up to 50 HRC.

What kind of machine compatibility is required?

Operation requires either a dedicated Gundrilling Machine, a specialized Deep Hole Drilling Attachment, or a standard CNC machine tool equipped with high-pressure through-spindle coolant (TSC) capability.

What surface finish and tolerances can be achieved with the system?

The standard diameter tolerance is ±0.02 mm (±0.0008"), and hole straightness is typically held to 0.001 mm per mm of depth. A surface finish of 0.8 - 4.0 µm Ra (32 - 125 µin Ra) is typically achievable, eliminating the need for secondary finishing operations.