Designed for medium-depth micro-hole drilling in cast iron materials, these 5xD micro carbide drills are manufactured from imported MG grade 0.8 μm tungsten carbide with 10% cobalt content, combined with ALTISIXN coating, controlled edge passivation, and high-precision grinding to improve abrasive wear resistance, chip discharge, edge stability, and hole consistency in small-diameter cast iron machining.
The 5xD micro carbide drills for cast iron are designed for small-diameter hole machining where hole depth, abrasive wear resistance, chip discharge, and edge stability are more demanding than 3xD micro drilling. In 5xD cast iron micro-hole applications, the drill must maintain stable cutting performance over a longer depth while reducing the risk of powdery chip accumulation, edge chipping, and hole deviation.
Cast iron materials such as grey cast iron, ductile iron, nodular cast iron, and compacted graphite iron are abrasive during machining. Powdery chips, hard casting skin, and uneven cast surfaces can accelerate tool wear and increase the risk of micro-chipping. In medium-depth micro-hole drilling, limited flute space makes chip discharge and edge protection especially important.
These micro carbide drills are manufactured from imported MG grade 0.8 μm tungsten carbide rods with 10% cobalt content, supporting small-diameter drilling strength and stable cutting performance. With ALTISIXN coating, manual drill point honing, automatic edge passivation, Walter Helicheck Plus inspection, and German Walter 5-axis grinding, the drills help improve abrasive wear resistance, powdery chip discharge, and reliable hole quality in precision cast iron machining.
| Item | Description | Item | Description |
|---|---|---|---|
| Product Name | 5xD Micro Carbide Drills for Cast Iron | Drill Type | Micro Solid Carbide Drill |
| Hole Depth | 5xD | Application |
|
| Workpiece Material | Grey cast iron, ductile iron, nodular cast iron, compacted graphite iron | Carbide Material | Imported MG Grade 0.8 μm Tungsten Carbide |
| Coating | ALTISIXN Wear-Resistant Coating | 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 rigidity, edge strength, and stable drilling performance in abrasive cast iron micro-holes.
ALTISIXN coating helps protect the cutting edge against abrasive wear in cast iron micro-drilling.
It supports stable cutting performance, reduces premature edge wear, and helps improve tool life in 5xD micro-hole applications.
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 5xD micro carbide drills for cast iron are suitable for medium-depth small-hole machining in CNC machining centers, high-speed drilling equipment, and production environments where abrasive wear resistance, chip discharge, hole accuracy, edge consistency, 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
5xD means the drill is designed for hole depths up to 5 times the drill diameter. Compared with 3xD micro drills, it is suitable for deeper small-hole machining where chip control and tool rigidity are more important.
Yes. These 5xD micro carbide drills are designed for cast iron materials, including grey cast iron, ductile iron, nodular cast iron, and compacted graphite iron under suitable machining conditions.
This micro carbide drill uses ALTISIXN coating, which helps improve wear resistance, edge protection, and cutting stability in stainless steel micro-hole drilling.
Cast iron is abrasive and often produces powdery chips. In 5xD micro-hole drilling, chip discharge distance is longer and flute space is limited, so abrasive wear, chip accumulation, and edge chipping can quickly affect hole quality and tool life.
3xD micro drills are mainly used for shorter and more rigid small-hole drilling. 5xD micro drills are used for deeper micro-holes and require better chip discharge, stronger process stability, and more careful runout control.
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. The ALTISIXN coating, controlled edge passivation, and high-precision grinding help improve edge protection when drilling cast surfaces or components with light casting skin.
Yes. We support customization based on diameter, hole depth, shank size, coating, steel grade, drawings, samples, and machining requirements.
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