Deep Hole Drilling System

Deep Hole Drilling System

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£349.00 excl. VAT

The Alliance Tools Deep Hole Drilling System is designed for precision drilling of holes with depth-to-diameter ratios exceeding 10:1. This specialized system includes a set of gun drills with internal coolant channels that deliver cutting fluid directly to the cutting edge, ensuring efficient chip evacuation and preventing overheating during deep drilling operations.

The carbide-tipped drills feature single-lip geometry optimized for straight, accurate holes in challenging materials. The system includes 5 drill diameters (3mm, 4mm, 5mm, 6mm, and 8mm) with effective drilling depths up to 30 times their diameter.

Each drill incorporates a specialized point geometry that minimizes thrust forces and ensures excellent centering accuracy. This professional system is ideal for mold making, aerospace components, and precision engineering applications where hole straightness and surface finish are critical requirements.

Key Features:

  • Internal coolant channels for efficient chip evacuation
  • 5 drill diameters: 3mm, 4mm, 5mm, 6mm, and 8mm
  • Effective drilling depths up to 30× diameter
  • Carbide-tipped single-lip geometry
  • Specialized point geometry for minimal thrust forces
SKU: DRL-DHP-05
Category: Drilling Tools

Deep Hole Drilling System

The Alliance Tools Deep Hole Drilling System represents the culmination of advanced drilling technology specifically designed to address the unique challenges of deep hole drilling. This professional-grade system enables machinists and engineers to produce exceptionally straight, accurate holes with depth-to-diameter ratios that far exceed the capabilities of conventional drilling methods.

Advanced Gun Drill Technology

At the heart of this system are specialized gun drills that incorporate several key technological innovations:

  • Single-lip cutting geometry that creates balanced cutting forces for straighter holes
  • Internal coolant channels that deliver cutting fluid directly to the cutting edge
  • Carbide tips precision-ground to optimize cutting performance in various materials
  • Specialized V-flute design that efficiently evacuates chips from deep holes
  • Reinforced shank design that minimizes deflection even at extreme depths

Coolant Delivery System

The integrated coolant delivery system is a critical component that enables successful deep hole drilling:

  • High-pressure coolant flows through internal channels in each drill
  • Coolant exits precisely at the cutting edge where heat generation is highest
  • The fluid stream efficiently evacuates chips from the cutting zone
  • Continuous lubrication reduces friction and extends tool life
  • The system prevents chip packing that commonly causes drill failure in deep holes

Comprehensive Diameter Range

This system includes 5 precision-manufactured gun drills covering the most commonly used diameters for deep hole applications: 3mm, 4mm, 5mm, 6mm, and 8mm. Each drill is capable of producing holes with depth-to-diameter ratios up to 30:1, allowing for exceptional versatility across various applications.

Specialized Point Geometry

Each drill incorporates a carefully engineered point geometry that provides several critical advantages:

  • Self-centering capability that ensures accurate hole positioning
  • Reduced thrust requirements that minimize drill deflection
  • Optimized cutting edge that produces excellent surface finish
  • Balanced cutting forces that result in straighter holes
  • Enhanced chip control that prevents chip jamming in deep holes

Professional Storage and Support Components

The system comes complete in a custom-designed case that includes:

  • All five gun drills in individual protective sleeves
  • Coolant adapter fittings for common machine tool configurations
  • Pilot bushings for each drill diameter to ensure accurate starting
  • Comprehensive instruction manual with cutting parameters
  • Technical support documentation for various materials

Technical Specifications

Drill Type Single-Lip Gun Drills with Internal Coolant
Cutting Material Micrograin Carbide Tips (Grade K20)
Body Material High-Alloy Tool Steel with Heat Treatment
Quantity 5 Drills
Diameters 3mm, 4mm, 5mm, 6mm, 8mm
Maximum Depth-to-Diameter Ratio 30:1
Effective Drilling Depths 90mm, 120mm, 150mm, 180mm, 240mm
Coolant Pressure Requirement 20-40 bar (300-600 psi)
Coolant Connection Standard 1/8" NPT with Adapters
Recommended Spindle Speed 2,000-6,000 RPM (material dependent)
Recommended Feed Rate 0.01-0.03mm per revolution
Case Dimensions 40cm × 30cm × 10cm
Total Weight 3.2 kg
Country of Manufacture United Kingdom
Warranty 1 Year Manufacturer's Warranty

Recommended Applications

  • Mold and die manufacturing
  • Aerospace component production
  • Medical device manufacturing
  • Precision hydraulic components
  • Fuel injection system components
  • Gun drilling operations
  • Deep cooling channel creation

Compatible Materials

  • Carbon and alloy steels
  • Stainless steel (all grades)
  • Tool steels (up to 54 HRC)
  • Cast iron
  • Aluminum and aluminum alloys
  • Copper and copper alloys
  • Nickel-based alloys
  • Titanium (with appropriate cutting parameters)

Delivery Information

Alliance Tools Limited is committed to providing fast, reliable delivery services for all our products.

Delivery Options

Service Estimated Delivery Time Cost
Standard Delivery 2-3 Working Days Free for orders over £75
Next Day Delivery Next Working Day (order before 2pm) £8.95
Saturday Delivery Saturday (order before 2pm Friday) £12.95

All deliveries require a signature upon receipt. Please ensure someone is available at the delivery address to sign for your package.

Returns Policy

We want you to be completely satisfied with your purchase. If for any reason you are not entirely happy with your order, you can return it to us within 30 days of receipt for a full refund or exchange.

To be eligible for a return, your item must be:
  • In the original packaging
  • Unused and in the same condition that you received it
  • Accompanied by the original invoice or receipt
Return Process:
  1. Contact our customer service team at info@alliancetoolsltd.info or call +441915920025 to initiate your return
  2. Package your product securely with all original packaging materials
  3. Include your order number and reason for return
  4. Ship the package to the address provided by our customer service team

Once we receive and inspect your return, we will process your refund or exchange promptly. Refunds will be issued to the original payment method within 5-7 business days.

Please note that shipping costs for returns are the responsibility of the customer unless the return is due to our error (you received an incorrect or defective item).