- DE
Boost machining efficiency with our carbide spiral double-hole round rod—high wear resistance, optimized helix angle & coolant flow. Custom sizes & global shipping.
Carbide Spiral Double-Hole Round Rod – Precision Engineered for Durability & Performance
Our tungsten carbide spiral double-hole round rod is designed for high-speed machining, offering exceptional wear resistance, rigidity, and heat dissipation. Ideal for drill bits, end mills, and reamers, it ensures extended tool life and superior surface finish in demanding applications like aerospace, automotive, and mold manufacturing.
Key Features:
✔ Ultra-Hard Tungsten Carbide – Withstands extreme abrasion and cutting forces.
✔ Spiral Double-Hole Design – Enhances coolant flow for reduced friction & thermal deformation.
✔ Custom Helix Angles (15°–45°) – Optimized for chip evacuation and cutting stability.
✔ Precision Ground – Tight tolerances (±0.005mm) for consistent performance.
✔ Global Standards – Complies with ISO 9001 & DIN specifications.
Applications:
Deep-hole drilling & milling
CNC tooling inserts
Composite & high-temp alloy machining
Available in:
Diameters: 3mm–20mm | Lengths: 50mm–300mm (customizable).
Coatings: TiN, TiAlN, or uncoated options.
| Type No. | L (mm) |
D (mm) |
Tol (mm) |
d (mm) |
DTK (mm) |
Tol (mm) |
Spiral Pitch (mm) |
Tol (mm) |
Spiral Angle |
| L060330-A | 330 | 6 | +0.7~1.1 | 0.7 | 2.6 | -0.4 | 32.65 | ±0.7 | 30° |
| L080330-A | 330 | 8 | +0.8~1.2 | 1.0 | 4.0 | -0.4 | 43.53 | ±1.0 | 30° |
| L100330-A | 330 | 10 | +0.8~1.2 | 1.4 | 4.8 | -0.6 | 54.41 | 士1.2 | 30° |
| L100330-A1 | 330 | 10 | +0.8~1.2 | 1.4 | 4.0 | -0.6 | 54.41 | 士1.2 | 30° |
| L120330-A | 330 | 12 | +0.9~1.3 | 1.4 | 6.25 | -0.8 | 65.3 | 士1.4 | 30° |
| L140330-A | 330 | 14 | +0.9~1.3 | 1.75 | 7.1 | -0.8 | 76.18 | ±1.6 | 30° |
| L150330-A | 330 | 15 | +0.9~1.3 | 1.75 | 7.7 | -0.8 | 81.62 | ±1.7 | 30° |
| L160330-A | 330 | 16 | +1~1.4 | 1.75 | 8.3 | -0.8 | 87.06 | ±1.8 | 30° |
| L180330-A | 330 | 18 | +1~1.4 | 2.0 | 9.55 | -0.8 | 97.95 | ±2.0 | 30° |
| L180330-A1 | 330 | 18 | +1~1.4 | 2.0 | 8.5 | -0.8 | 97.95 | ±2.0 | 30° |
| L200330-A | 330 | 20 | +1~1.4 | 2.0 | 10.4 | -1.0 | 108.83 | ±2.2 | 30° |
| L220330-A | 330 | 22 | +1~1.5 | 2.0 | 11.6 | -1.0 | 119.71 | 士2.4 | 30° |
| L250330-A | 330 | 25 | +1~1.6 | 2.0 | 13.3 | -1.0 | 136.04 | 士2.8 | 30° |
|
Grade ISO
|
Cobalt content %
|
Grain size of WC (μm)
|
Hardness (HRA)
|
Density g/cm3
|
TRS N/mm2
|
|
K05-K10
|
6
|
0.4
|
94
|
14.85
|
≥4000
|
|
K10-K20
|
8
|
0.4
|
93.6
|
14.65
|
≥4000
|
|
K20-K40
|
12
|
0.4
|
92.5
|
14.15
|
≥4200
|
|
K20-K40
|
12
|
0.4
|
93
|
14.2
|
≥3800
|
|
K20-K40
|
10
|
0.6
|
92.3
|
14.4
|
≥3900
|
|
K20-K40
|
10
|
0.8
|
91.8
|
14.4
|
≥3800
|
|
K05
|
7
|
1.0
|
92
|
14.8
|
≥3000
|
Typical Applications of the double hole tungten carbide rods:
Precision mechanical component processing
Mold manufacturing and repair
High-intensity cutting in automotive and aerospace industries
Why Choose Our Product?
Manufactured to German engineering standards with strict quality control, each rod guarantees reliability and consistency—helping you boost productivity and reduce overall costs.
Advantages of our carbide products:
1. high quality durable tungsten carbide welding rods/cemented rods for milling for router bits made from 100% virgin raw
material.
2. produced with advanced equipments and process.
3. all products go through in-process and final inspection.
4. free online technical service available.
5. stable and continuous production ability.
