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.
| 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 |
|
| Service | Regrinding and Customization Available | Tool Life | Up to 80–150 Meters Under Suitable Machining Conditions |
Key Features
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 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 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.
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.
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.
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
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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