Designed for stable medium-depth drilling in cast iron materials, this 5xD carbide drill combines imported submicron carbide, ALTISIXN wear-resistant coating, optimized point geometry, and reinforced flute structure to resist abrasive wear, improve chip discharge, reduce edge chipping, and maintain reliable hole quality in cast iron machining.
The 5xD carbide drill for cast iron is developed for medium-depth drilling applications where abrasive wear, powdery chips, edge chipping, and cast surface variation can affect tool life and hole consistency. Compared with 3xD short-hole drilling, 5xD cast iron drilling requires stronger chip discharge capability, better tool rigidity, and more stable edge protection over a longer cutting depth.
Cast iron materials such as grey cast iron, ductile iron, nodular cast iron, and compacted graphite iron are highly abrasive during machining. Powdery chips and hard casting skin can accelerate cutting edge wear, while unstable entry conditions may cause micro-chipping or poor hole quality. For this reason, a carbide drill for cast iron needs a wear-resistant coating, reinforced cutting edge, and stable flute structure.
This 5xD carbide drill is manufactured from imported MG grade 0.8 μm submicron tungsten carbide rods with 10% cobalt content. Combined with ALTISIXN wear-resistant coating, optimized point geometry, reinforced flute design, and controlled edge preparation, it helps improve drilling stability, resist abrasive wear, and support reliable medium-depth hole machining in cast iron components.
| Item | Description | Item | Description |
|---|---|---|---|
| Product Name | 5xD Carbide Drill for Cast Iron | Drill Type | Solid Carbide Drill |
| Hole Depth | 5xD | Application | Medium-depth cast iron drilling |
| Workpiece Material | Grey cast iron, ductile iron, nodular cast iron, compacted graphite iron | Carbide Material | Imported MG Grade 0.8 μm Tungsten Carbide |
| Cobalt Content | 10% | Helix Angle | 30° |
| Point Angle | 138.9° | Rake Angle | 16° |
| Negative Chamfer | -6° | Core Design | 30–40% Variable Core Diameter |
| Back Taper | 0.8° | Coating | ALTISIXN Wear-Resistant Coating |
| Coating Hardness | 2000–4000 HV | Friction Coefficient | 0.05–0.15 |
| Coolant Type | Internal Coolant / External Coolant Available | Tool Life | Up to 80–100 Meters Under Suitable Machining Conditions |
| Service | Regrinding and Customization Available |
| Drill Diameter (mm) | Flute Length (mm) | Shank Diameter (mm) | Overall Length (mm) | Hole Depth | Coolant Type | Availability |
|---|---|---|---|---|---|---|
| D3.00-D3.90 | 28 | 6 | 66 | 5xD | Internal / External | Standard |
| D4.00-D4.70 | 36 | 6 | 74 | 5xD | Internal / External | Standard |
| D4.80-D6.00 | 44 | 6 | 82 | 5xD | Internal / External | Standard |
| D6.10-D8.00 | 53 | 8 | 91 | 5xD | Internal / External | Standard |
| D8.10-D10.0 | 61 | 10 | 103 | 5xD | Internal / External | Standard |
| D10.1-D12.0 | 71 | 12 | 118 | 5xD | Internal / External | Standard |
| D12.1-D14.0 | 77 | 14 | 124 | 5xD | Internal / External | Standard |
| D14.1-D16.0 | 83 | 16 | 133 | 5xD | Internal / External | Standard |
| D16.1-D18.0 | 93 | 18 | 143 | 5xD | Internal / External | Standard |
| D18.1-D20.0 | 101 | 20 | 153 | 5xD | Internal / External | Standard |
Key Features
Made from imported 0.8 μm submicron carbide with 10% cobalt for hardness and toughness.
Helps maintain edge stability during medium-depth drilling in abrasive cast iron materials.
ALTISIXN coating is selected for cast iron drilling where abrasive wear is a major challenge.
It helps protect the cutting edge, slow down wear, and improve drilling stability in cast components.
30° helix and 138.9° point angle support stable entry and accurate hole positioning.
Split-point design helps reduce drill walking and improve stability on cast surfaces.
16° rake angle and variable core design improve rigidity and powdery chip discharge in 5xD drilling.
Negative chamfer and back taper help protect the edge and maintain consistent hole quality.
This 5xD carbide drill for cast iron is suitable for medium-depth hole machining in CNC machining centers and production drilling applications. It is especially useful for cast iron components where abrasive wear, powdery chip discharge, cast surface variation, hole straightness, and batch consistency must be controlled.
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.
Yes. This drill is designed for cast iron drilling, helping improve abrasive wear resistance, edge stability, chip discharge, and hole consistency under suitable machining conditions.
ALTISIXN is a wear-resistant coating used to improve drilling stability in abrasive materials such as cast iron. It helps protect the cutting edge, reduce wear, and support longer tool life during production drilling.
A 3xD drill is mainly used for short-hole drilling, while a 5xD drill is designed for deeper holes that require stronger chip discharge, better rigidity, improved hole straightness, and more stable wear resistance.
Cast iron is often machined under dry or external coolant conditions depending on the application. Internal coolant and external coolant versions are also available according to machine conditions and hole requirements.
Yes. We support customization based on drawings, cast iron grade, diameter, hole depth, coolant method, ALTISIXN coating requirement, and drilling application.
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