Designed for demanding extra-deep-hole drilling in titanium alloys and difficult-to-machine materials, this 20xD carbide drill combines imported MG grade 0.8 μm carbide, HSR118 heat-resistant coating, optimized point geometry, reinforced extra-deep-hole flute structure, and internal coolant channels to control cutting heat, reduce chip adhesion, improve long-distance chip evacuation, and maintain reliable hole straightness in precision titanium machining.
The 20xD carbide drill for titanium alloy is designed for demanding extra-deep-hole applications where cutting heat control, chip evacuation, hole straightness, coolant delivery, and process stability are critical. Compared with 12xD or 15xD drilling, 20xD titanium alloy machining places significantly higher demands on pilot hole accuracy, spindle runout, coolant pressure, flute rigidity, tool holding, and machine stability.
Titanium alloys such as Ti-6Al-4V, TC4, Grade 5 titanium, and Grade 2 titanium have low thermal conductivity, high toughness, and a strong tendency to adhere to the cutting edge. Heat generated during drilling remains concentrated near the drill point instead of transferring quickly into the workpiece or chips.
In a 20xD hole, titanium chips must travel a very long distance before leaving the cutting zone. Insufficient coolant delivery or unstable chip evacuation may cause chip packing, built-up edge, increased cutting torque, cutting edge overload, hole deviation, poor surface quality, or premature drill breakage.
This 20xD carbide drill is manufactured from imported MG grade 0.8 μm tungsten carbide rods with 10% cobalt content, supporting tool rigidity and edge stability. Combined with HSR118 heat-resistant coating, reinforced flute geometry, internal coolant channels, controlled edge preparation, Walter inspection, and German Walter 5-axis grinding, it helps maintain reliable drilling performance and consistent hole quality in extra-deep titanium alloy applications.
| Item | Description | Item | Description |
|---|---|---|---|
| Product Name | 20xD Carbide Drill for Titanium Alloy | Drill Type | Solid Carbide Extra-Deep-Hole Drill |
| Hole Depth | 20xD | Application | Extra-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 |
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 strength, and dimensional stability required for extra-deep titanium alloy hole drilling.
HSR118 coating is designed for titanium alloy machining where cutting heat and chip adhesion are major challenges.
It helps protect the cutting edge, reduce chip sticking, and maintain more stable cutting performance throughout long 20xD drilling cycles.
Internal coolant channels deliver cutting fluid close to the drill point to help control concentrated cutting heat and carry titanium chips out of the hole.
Stable coolant pressure and flow are especially important for reducing chip packing, built-up edge, and cutting edge overload.
Reinforced flute geometry balances chip space and drill rigidity for extra-deep-hole titanium machining.
The variable core design and back taper help reduce internal friction, improve chip flow, protect the cutting edge, and support better hole straightness.
This 20xD carbide drill for titanium alloy is suitable for extra-deep-hole machining in CNC machining centers and automated production equipment. It is intended for titanium applications where cutting heat control, chip adhesion reduction, long-distance chip evacuation, internal coolant delivery, 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
20xD means the drill is designed to produce holes up to 20 times its diameter. For example, a 5 mm drill can be used for a hole depth of approximately 100 mm under suitable machining conditions.
Yes. This 20xD carbide drill is designed for Ti-6Al-4V, TC4, Grade 5 titanium, Grade 2 titanium, and other titanium alloy materials under suitable machining conditions.
The drill uses HSR118 heat-resistant coating, which helps improve cutting heat resistance, reduce chip adhesion, protect the cutting edge, and maintain stable performance in titanium alloy extra-deep-hole drilling.
Titanium alloy has low thermal conductivity, high toughness, and a strong tendency to adhere to the cutting edge. In 20xD drilling, heat is difficult to remove and chips must travel a long distance, increasing the risk of chip packing, built-up edge, edge overload, and drill breakage.
A 20xD drill has a longer unsupported body and chip evacuation path than a 15xD drill. It requires more accurate pilot guidance, stronger coolant delivery, lower spindle runout, better tool holding, and more stable machine conditions.
Internal coolant is required for most 20xD titanium alloy applications. It helps control concentrated cutting heat, reduce chip adhesion, carry chips through the long flutes, and protect the cutting edge.
A precision pilot or guide hole is typically required for 20xD drilling. It guides the long drill during entry and helps improve hole positioning, straightness, and process safety.
Yes. We support customized diameter, flute length, overall length, shank size, coolant channel, HSR118 coating, and matching pilot drill according to drawings and machining requirements.
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