Designed for stable deep-hole drilling in titanium alloys and difficult-to-machine materials, this 12xD carbide drill combines imported MG grade 0.8 μm carbide, HSR118 heat-resistant coating, optimized point geometry, reinforced deep-hole flute structure, and internal coolant support to improve heat control, reduce chip adhesion, enhance chip evacuation, and maintain reliable hole straightness in long-depth titanium alloy machining.
The 12xD carbide drill for titanium alloy is designed for deep-hole machining applications where cutting heat control, chip evacuation, hole straightness, and tool reliability are critical. Compared with 5xD or 8xD drilling, 12xD titanium alloy drilling has a longer chip evacuation path and places higher demands on coolant delivery, flute rigidity, edge strength, and process stability.
Titanium alloys such as Ti-6Al-4V, TC4, Grade 5 titanium, and Grade 2 titanium have low thermal conductivity, high toughness, and strong adhesion tendency during drilling. In 12xD deep-hole drilling, cutting heat is difficult to remove, and chips may easily stick to the cutting edge or flute. If heat buildup, chip adhesion, and cutting resistance are not controlled, the drill may face rapid wear, hole deviation, poor surface quality, or premature breakage.
This 12xD carbide drill is manufactured from imported MG grade 0.8 μm tungsten carbide rods with 10% cobalt content, supporting high-speed cutting and stable tool strength. Combined with HSR118 heat-resistant coating, optimized point geometry, reinforced deep-hole flute structure, controlled edge preparation, and German Walter precision grinding, it helps improve heat resistance, reduce chip sticking, and maintain consistent hole quality in deep titanium alloy drilling applications.
| Item | Description | Item | Description |
|---|---|---|---|
| Product Name | 12xD Carbide Drill for Titanium Alloy | Drill Type | Solid Carbide Deep-Hole Drill |
| Hole Depth | 12xD | Application | Deep-hole drilling in titanium alloy and difficult-to-machine materials |
| Workpiece Material | Titanium alloy, Ti-6Al-4V, TC4, Grade 5 titanium, Grade 2 titanium, high-temperature alloys | Carbide Material | Imported MG Grade 0.8 μm Tungsten Carbide |
| Cobalt Content | 10% | Coating | HSR118 Wear-Resistant Coating |
| Passivation Control | ±0.003 mm | Edge Inspection |
|
| Service | Regrinding and Customization Available | Tool Life | Up to 80–150 Meters Under Suitable Machining Conditions |
| Drill Diameter (mm) | Flute Length (mm) | Shank Diameter (mm) | Overall Length (mm) | Hole Depth | Coolant Type | Availability |
|---|---|---|---|---|---|---|
| D3.10-D4.00 | 54 | 4 | 92 | 12xD | Internal / External | Standard |
| D4.10-D4.70 | 64 | 6 | 102 | 12xD | Internal / External | Standard |
| D4.80-D6.00 | 83 | 6 | 121 | 12xD | Internal / External | Standard |
| D6.10-D8.00 | 110 | 8 | 148 | 12xD | Internal / External | Standard |
| D8.10-D10.0 | 138 | 10 | 180 | 12xD | Internal / External | Standard |
| D10.1-D12.0 | 158 | 12 | 206 | 12xD | Internal / External | Standard |
| D12.1-D14.0 | 182 | 14 | 230 | 12xD | Internal / External | Standard |
| D14.0-D16.0 | 208 | 16 | 260 | 12xD | Internal / External | Standard |
| D16.1-D18.0 | 234 | 18 | 285 | 12xD | Internal / External | Standard |
| D18.1-D20.0 | 258 | 20 | 310 | 12xD | Internal / External | Standard |
Key Features
Made from imported MG grade 0.8 μm tungsten carbide with 10% cobalt content.
The fine carbide grain structure helps support tool rigidity, edge strength, and stable cutting performance in deep titanium alloy hole machining.
HSR118 coating is designed for titanium alloy machining where cutting heat and chip adhesion are major challenges.
It helps reduce chip sticking, protect the cutting edge, and improve stability in 12xD deep-hole drilling conditions.
Optimized drill point geometry supports stable entry and accurate hole positioning.
A stable drill point helps reduce drill walking, minimize cutting load fluctuation, and improve starting accuracy before deep-hole drilling.
Reinforced flute geometry improves chip evacuation and tool rigidity in 12xD titanium alloy drilling.
The variable core design and back taper help reduce chip clogging, lower friction inside the hole, and maintain better hole straightness.
This 12xD carbide drill for titanium alloy is suitable for deep-hole machining in CNC machining centers and production drilling applications. It is especially useful for titanium components where cutting heat control, chip evacuation, internal coolant delivery, hole straightness, 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
12xD means the drill is designed for hole depths up to 12 times the drill diameter. It is used for deeper hole machining where chip evacuation, tool rigidity, coolant delivery, and hole straightness are more demanding.
Yes. This 12xD carbide drill is suitable for titanium alloys such as Ti-6Al-4V, TC4, Grade 5 titanium, Grade 2 titanium, and other difficult-to-machine alloy materials under suitable machining conditions.
This drill uses HSR118 heat-resistant coating, which helps improve heat resistance, reduce chip adhesion, and protect the cutting edge in titanium alloy deep-hole drilling applications.
Titanium alloy has low thermal conductivity, high toughness, and strong adhesion tendency. In 12xD drilling, heat is harder to remove and chips travel a longer distance, so coolant support, chip evacuation, and edge stability are critical.
An 8xD drill is used for deep-hole drilling, while a 12xD drill is designed for even deeper holes with a longer chip evacuation path. 12xD drilling requires stronger coolant support, better flute rigidity, more careful runout control, and stable process conditions.
Yes. Internal coolant is strongly recommended because it helps control cutting heat, reduce chip adhesion, support chip evacuation, and maintain stable hole quality in deeper titanium alloy holes.
For better starting stability and hole accuracy, a pilot hole or guide hole is recommended in many 12xD drilling applications. The actual process should be confirmed according to drill diameter, machine condition, titanium grade, and tolerance requirement.
Yes. We support customization based on drawings, titanium grade, diameter, hole depth, coolant method, HSR118 coating requirement, shank size, and drilling application.
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