Designed for precision micro-hole drilling in aluminum and non-ferrous materials, these 3xD micro carbide drills are manufactured from imported MG grade 0.8 μm tungsten carbide with 10% cobalt content, combined with sharp edge preparation, uncoated or DLC coating options, and high-precision grinding to reduce chip adhesion, improve chip evacuation, and maintain clean hole quality in small-diameter aluminum machining.
The 3xD micro carbide drills for aluminum are designed for small-diameter hole machining where sharp cutting edges, smooth chip evacuation, low cutting resistance, and clean hole walls are important. Compared with standard-size carbide drills, micro drills are more sensitive to chip adhesion, spindle runout, edge defects, and poor chip control.
Aluminum and aluminum alloys are soft and adhesive during drilling. In micro-hole machining, aluminum chips may easily stick to the cutting edge, cause built-up edge, scratch the hole wall, or affect hole accuracy. For this reason, aluminum micro drills require sharp geometry, smooth flute quality, stable edge preparation, and suitable surface treatment.
These micro carbide drills are manufactured from imported MG grade 0.8 μm tungsten carbide rods with 10% cobalt content, supporting high-speed cutting and small-diameter drilling stability. Uncoated drills are suitable for applications requiring a sharp cutting edge and smooth cutting feel, while DLC-coated options provide lower friction and better anti-adhesion performance for aluminum and non-ferrous machining.
| Item | Description | Item | Description |
|---|---|---|---|
| Product Name | 3xD Micro Carbide Drills for Aluminum | Drill Type | Micro Solid Carbide Drill |
| Hole Depth | 3xD | Application | Precision micro-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 |
| Coating | Uncoated / DLC Coating Available | Cobalt Content | 10% |
| Passivation Control | ±0.003 mm | Tool Life | Up to 80–100 Meters Under Suitable Machining Conditions |
| Service | Regrinding and Customization Available | Available Depth Series | 3xD, 5xD, 8xD, 12xD, up to 30xD |
Key Features
Made from imported MG grade 0.8 μm tungsten carbide with 10% cobalt content.
The fine carbide grain structure helps support edge sharpness, rigidity, and stable micro-hole drilling in aluminum materials.
Uncoated micro drills provide sharp cutting performance for general aluminum micro-hole machining.
DLC coating offers a low-friction surface to help reduce aluminum adhesion, built-up edge, and hole wall scratches.
The drill point is manually honed and chamfer-passivated to improve cutting edge strength.
Automatic rubber-bonded diamond abrasive polishing keeps edge consistency and controls the passivation value within ±0.003 mm.
Produced on German Walter 5-axis high-precision grinding machines to ensure sharp and accurate cutting edges.
Walter Helicheck Plus inspection and 300x magnification checks help control geometry accuracy and prevent edge defects.
These 3xD micro carbide drills for aluminum are suitable for precision small-hole machining in CNC machining centers, high-speed drilling equipment, and production environments where clean hole quality, chip evacuation, edge sharpness, and tool reliability are important.
Send us your material and hole requirements. Our team will recommend the right drill solution.
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.
Production Facility
Geometry Accuracy Control
Edge Inspection Magnification
Edge Passivation Control
Our carbide drills are ground on German WALTER 5-axis grinding machines for sharp cutting edges, stable accuracy, and smooth drilling performance.
We use WALTER HELICHECK PLUS for contour inspection, keeping profile and radius control within 3 μm for reliable geometric precision.
Each carbide drill is inspected at 300x magnification to check edge quality and avoid chipping or saw-tooth defects before shipment.
Manual drill point honing and automatic rubber-bonded diamond abrasive polishing help improve tool life and control edge consistency within ±0.003 mm.
Common Questions
3xD means the drill is designed for hole depths up to 3 times the drill diameter. For micro drills, this depth is suitable for stable small-hole machining with better rigidity and positioning control.
Yes. These 3xD micro carbide drills are designed for aluminum, aluminum alloys, cast aluminum, and non-ferrous materials under suitable machining conditions.
Uncoated micro drills are suitable for general aluminum machining where a sharp cutting edge is required. DLC-coated micro drills are recommended when better anti-adhesion performance, lower friction, and cleaner hole walls are needed.
Aluminum is soft and adhesive during drilling. In micro-hole machining, chip adhesion, built-up edge, and hole wall scratches can quickly affect hole accuracy and surface quality, so sharp edges and smooth chip evacuation are important.
DLC coating provides a low-friction surface that helps reduce aluminum adhesion, chip sticking, and built-up edge. It is suitable for aluminum and other non-ferrous materials.
Micro drills have very small cutting edges and are sensitive to edge defects. Controlled edge preparation helps maintain consistent cutting performance, reduce unstable cutting, and improve hole quality.
We use German Walter Helicheck Plus for contour measurement, with profile and radius control within 3 μm. The products are also inspected at 300x magnification to check edge appearance and avoid chipping or saw-tooth defects.
Yes. We support customization based on diameter, hole depth, shank size, coating, stainless steel grade, drawings, samples, and machining requirements.
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