Product Overview

30xD Solid Carbide Drill —Engineered for Demanding Extra-Deep Aluminum Hole Machining

The 30xD carbide drill for aluminum is designed for highly demanding extra-deep-hole applications where long-chip evacuation, low cutting resistance, pilot guidance, hole straightness, coolant delivery, flute rigidity, and process stability are critical.

Compared with 15xD or 20xD drilling, a 30xD aluminum application has a significantly longer unsupported drill body and chip evacuation path. It places much higher demands on pilot hole accuracy, spindle runout, tool holder condition, machine rigidity, coolant pressure and flow, flute surface quality, and cutting parameter control.

Aluminum and aluminum alloys are relatively soft but highly adhesive during drilling. Long aluminum chips may stick to the cutting edge, accumulate inside the flute, form built-up edge, or scratch the machined hole wall.

In a 30xD hole, chips must travel through an extremely long flute path before leaving the cutting zone. Insufficient coolant delivery or unstable chip evacuation may cause chip packing, increased cutting torque, diameter variation, hole deviation, poor surface finish, or premature drill breakage.

This carbide drill is manufactured from imported MG grade 0.8 μm tungsten carbide rods with 10% cobalt content, supporting drill rigidity and cutting edge stability. Uncoated options provide sharp cutting performance and low cutting resistance, while DLC-coated options provide a low-friction surface that helps reduce aluminum adhesion, chip sticking, and built-up edge throughout the extended drilling cycle.

  • Extra-Deep Aluminum Drilling
  • Uncoated / DLC Options
  • Precision Pilot-Hole Guidance
  • Regrinding & Customization
product overview

Technical Specifications 

Item Description Item Description
Product Name 30xD Carbide Drill for Aluminum Drill Type Solid Carbide Extra-Deep-Hole Drill
Hole Depth 30xD Application Extra-deep-hole drilling in aluminum and non-ferrous materials
Workpiece Material Aluminum, aluminum alloys, 6061, 7075, cast aluminum, non-ferrous metals Carbide Material Imported MG Grade 0.8 μm Tungsten Carbide
Cobalt Content 10% Coating Uncoated / DLC Coating Available
Passivation Control ±0.003 mm Edge Inspection
300x magnification appearance inspection
Service Regrinding and Customization Available Tool Life Up to 80–150 Meters Under Suitable Machining Conditions

 

Additional diameters, special tolerances, and internal coolant versions available on request.

Engineering Details That Improve 30xD Aluminum Drilling

Premium Carbide Material

Premium Carbide Material

Made from imported MG grade 0.8 μm tungsten carbide with 10% cobalt content.
The fine carbide grain structure helps provide the rigidity, edge sharpness, and dimensional stability required for demanding extra-deep aluminum hole drilling.

Uncoated / DLC Surface Options

Uncoated / DLC Surface Options

Uncoated drills provide a sharp cutting edge and low cutting resistance for general aluminum machining.
DLC coating provides a low-friction surface that helps reduce aluminum adhesion, built-up edge, chip sticking, and hole wall scratches during extended 30xD drilling cycles.

Internal Coolant Design

Internal Coolant Design

Internal coolant channels deliver cutting fluid close to the drill point and help carry long aluminum chips through the extended flute path.
Stable coolant pressure and sufficient flow are critical for reducing chip packing, built-up edge, cutting torque fluctuation, and surface damage.

Extra-Deep-Hole Flute Structure

Extra-Deep-Hole Flute Structure

Reinforced flute geometry balances chip space and drill rigidity for demanding long-depth aluminum machining.
The variable core design and back taper help reduce internal friction, improve long-chip flow, protect the cutting edge, and support better hole straightness and hole wall quality.

Applications

Where This 30xD Carbide Drill Performs Best

This 30xD carbide drill for aluminum is suitable for highly demanding extra-deep-hole machining in CNC machining centers and automated production equipment. It is intended for applications where long-chip evacuation, anti-adhesion performance, internal coolant delivery, pilot guidance, clean hole walls, hole straightness, and reliable batch performance are important.

Suitable Materials

  • 6061 Aluminum
  • 7075 Aluminum
  • 2024 Aluminum
  • 6082 Aluminum
  • Cast Aluminum
  • Wrought Aluminum Alloys
  • General Aluminum Alloys
  • Selected Non-Ferrous Materials

Typical Applications

  • 30xD Extra-Deep-Hole Drilling
  • Long Through-Hole Drilling
  • Extra-Deep Blind-Hole Drilling
  • Precision Aluminum Hole Machining
  • Aluminum Shaft Components
  • Aerospace Aluminum Parts
  • Automotive Aluminum Components
  • 3C and Electronic Aluminum Parts
Ready to Test?

Need a Stable 30xD Carbide Drill for Aluminum?

Send us your material and hole requirements. Our team will recommend the right drill solution.

Why Choose Us

Why Choose Landun CNC Tool

Landun CNC Tool is a carbide drill manufacturer focused on precision solid carbide drills and custom carbide drill solutions, supported by advanced grinding, strict inspection, and consistent edge preparation.

3,000 m²

Production Facility

3 μm

Geometry Accuracy Control

300x

Edge Inspection Magnification

±0.003 mm

Edge Passivation Control

Why Choose Us
German Walter 5-Axis Grinding Machines

German Walter 5-Axis Grinding Machines

Our carbide drills are ground on German WALTER 5-axis grinding machines for sharp cutting edges, stable accuracy, and smooth drilling performance.

Walter Helicheck Plus Contour Inspection

Walter Helicheck Plus Contour Inspection

We use WALTER HELICHECK PLUS for contour inspection, keeping profile and radius control within 3 μm for reliable geometric precision.

300x Magnification Edge Inspection

300x Magnification Edge Inspection

Each carbide drill is inspected at 300x magnification to check edge quality and avoid chipping or saw-tooth defects before shipment.

Consistent Edge Passivation Control

Consistent Edge Passivation Control

Manual drill point honing and automatic rubber-bonded diamond abrasive polishing help improve tool life and control edge consistency within ±0.003 mm.

Frequently Asked Questions

30xD means the drill is designed to produce a hole up to 30 times its diameter. For example, a 5 mm drill can be used for a drilling depth of approximately 150 mm under suitable machining conditions.

Yes. This 30xD carbide drill is designed for 6061, 7075, 2024, 6082, cast aluminum, and other aluminum alloys under suitable machining conditions.

Uncoated drills are suitable for applications requiring a very sharp cutting edge and low cutting resistance. DLC-coated drills are recommended when lower friction, stronger anti-adhesion performance, reduced built-up edge, and cleaner hole walls are required.

DLC coating provides a low-friction surface that helps reduce aluminum adhesion, chip sticking, and built-up edge. It can also support smoother chip evacuation and more consistent hole wall quality.

Aluminum forms long and adhesive chips. In 30xD drilling, these chips must travel through an extremely long flute path, increasing the risk of chip packing, built-up edge, cutting torque fluctuation, hole wall scratches, and drill breakage.

A precision pilot or guide hole is typically required. The pilot hole guides the long drill during entry and strongly affects hole positioning, straightness, cutting stability, and tool safety.

Internal coolant is required for most 30xD aluminum applications. It helps carry long chips through the flutes, reduce chip adhesion, control cutting temperature, and maintain stable hole quality.

Yes. We support customized diameter, flute length, overall length, shank size, coolant channel, uncoated or DLC surface options, edge preparation, and matching pilot drills according to drawings and machining requirements.

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Landun Cnc Tool

Tell Us Your Requirements

Contact Landun CNC Tool for standard, micro, deep-hole, internal-coolant, flat-bottom, step, and custom solid carbide drills. Send us your drawing, existing tool sample, workpiece material, and hole requirements, and our team will provide an application review and quotation.

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