R Series 20xD Deep Hole Solid Carbide Drill ZU-0380-20I-R | Internal Coolant φ3

Highlights

Key Advantages

Monolithic solid carbide body — high rigidity and wear resistance at extended length-to-diameter ratios
Tetrahedral back-angle geometry stabilizes cutting and strengthens the edge under deep-hole loads
Dual-margin land plus relief notch provides reliable support and guidance in long-hole drilling
Internal coolant channels improve chip evacuation and control heat at depth
Precision-ground special flute profile for consistent hole quality and repeatable performance
Full series coverage: 12xD, 20xD and 30xD, φ3–20 mm

Use Cases

Applications

Deep hole drilling in mould and die components
Cooling and lubrication channel drilling in automotive parts
Hydraulic and pneumatic manifold deep-hole machining
Aerospace structural and engine component drilling
Medical and precision instrument long-hole boring
General machining of steel, stainless steel and other hard-to-cut alloys

Specs

Technical Specifications

Model	ZU-0380-20I-R
Series	R Series Deep Hole Solid Carbide Drill
Material	Monolithic solid carbide
Depth-to-Diameter Ratio	20xD
Diameter Range	φ3–20 mm
Sub-series	12xD / 20xD / 30xD
Cooling	Internal coolant
Flute Design	Precision-ground special flute profile
Back Angle Geometry	Tetrahedral form for cutting stability and edge strength
Body Design	Dual-margin land with relief notch

Details

Detailed Description

Заголовок: R Series Deep Hole Solid Carbide Drill
Модель: ZU-0380-20I-R
Материал: монолитный твердый сплав
Особенности конструкции
Специальная канавка, точно отшлифованная специальным шлифовальным кругом
Структура заднего угла тетраэдрической формы обеспечивает стабильность резания и прочность кромки
Конструкция с двойной ленточкой и выемкой обеспечивает стабильную опору и подходит для обработки глубоких и длинных отверстий
Диапазон спецификаций
Три подсерии: 12xD, 20xD и 30xD, диаметр φ3–20 мм, конструкция с внутренним охлаждением
Английская версия (для прямого копирования на внешнеторговый独立ный сайт)

FAQ

How do I choose between the 12xD, 20xD and 30xD sub-series?

Select the shortest depth ratio that covers your hole depth. 12xD suits standard deep holes, 20xD handles most demanding applications, and 30xD is for extreme depth where rigidity and coolant pressure must be carefully matched to the machine.

Is internal coolant required for this drill?

Yes. Internal coolant is strongly recommended to evacuate chips and control heat at 20xD depth. Use coolant pressure and flow matched to the drill diameter and machine capability for best results.

What materials is the ZU-0380-20I-R suitable for?

It is designed for steels, stainless steels and other hard-to-cut alloys. For specific workpiece materials, confirm cutting parameters and coating options with our technical team before ordering.

Can you confirm compatibility with my machine and tool holder?

Provide your spindle interface, tool holder type and available coolant pressure, and we will confirm the correct shank and configuration for your setup.

What is the typical lead time?

Standard sizes are generally available from stock; non-standard diameters and 30xD variants are produced to order. Share your specification and quantity for a confirmed delivery schedule.

How is quality assured?

Each drill is manufactured from controlled solid carbide stock and inspected for geometry, edge condition and coolant channel integrity before shipment. Documentation can be provided on request.

Серия R сверхдлинное сверло ZU-0380-20I-R