OYYU GER Internal Groove & Face Grooving Inserts | Available in Multiple Sizes and Slot Shapes
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GER Internal Groove and Face Grooving Inserts: Precision Inserts for High-Quality Machining
GER Series: Versatile Grooving Inserts for Internal and Face Applications
The GER series offers precision internal groove and face grooving inserts, ideal for various machining applications. Available in multiple slot types (A, B, C, D), these inserts are designed to provide superior performance in a wide range of materials.
Slot Types: A, B, C, D
GER inserts come in four different slot types (A, B, C, D), each optimized for specific grooving needs. Whether you're working with small or large diameters, GER inserts deliver high precision and long tool life.
Specifications and Size Chart
| Model | Slot Type | Width (mm) | Cutting Depth (mm) | Min Hole Diameter (mm) | Matching Tool Holder |
|---|---|---|---|---|---|
| GER100-A | A | 1.0 | 1.8 | 8 | SIGER0606A-EH, SIGER0808A-EH |
| GER150-A | A | 1.5 | 1.8 | 8 | SIGER0606A-EH, SIGER0808A-EH |
| GER200-A | A | 2.0 | 2.5 | 8 | SIGER0606A-EH, SIGER0808A-EH |
| GER100-B | B | 3.0 | 2.6 | 10 | SIGER1010B-EH, SIGER1210B-EH |
| GER120-B | B | 1.2 | 2.8 | 10 | SIGER1010B-EH, SIGER1210B-EH |
| GER150-B | B | 1.5 | 2.7 | 10 | SIGER1010B-EH, SIGER1210B-EH |
| GER200-B | B | 2.0 | 2.7 | 10 | SIGER1010B-EH, SIGER1210B-EH |
| GER250-B | B | 2.5 | 2.6 | 10 | SIGER1010B-EH, SIGER1210B-EH |
| GER300-B | B | 3.0 | 2.7 | 10 | SIGER1010B-EH, SIGER1210B-EH |
| GER100-C | C | 1.5 | 2.7 | 14 | SIGER1412C-EH, SIGER1616C-EH |
| GER120-C | C | 1.2 | 2.8 | 14 | SIGER1412C-EH, SIGER1616C-EH |
| GER150-C | C | 1.5 | 3.0 | 14 | SIGER1412C-EH, SIGER1616C-EH |
| GER200-C | C | 2.0 | 3.1 | 14 | SIGER1412C-EH, SIGER1616C-EH |
| GER250-C | C | 2.5 | 3.1 | 14 | SIGER1412C-EH, SIGER1616C-EH |
| GER300-C | C | 3.0 | 3.2 | 14 | SIGER1412C-EH, SIGER1616C-EH |
| GER100-D | D | 2.0 | 4.9 | 20 | SIGER2020D-EH, SIGER2525D-EH |
| GER150-D | D | 2.5 | 4.5 | 20 | SIGER2020D-EH, SIGER2525D-EH |
| GER200-D | D | 3.0 | 4.8 | 20 | SIGER2020D-EH, SIGER2525D-EH |
| GER250-D | D | 3.5 | 4.5 | 20 | SIGER2020D-EH, SIGER2525D-EH |
| GER300-D | D | 4.0 | 4.8 | 20 | SIGER2020D-EH, SIGER2525D-EH |
| GER350-D | D | 4.5 | 5.0 | 20 | SIGER2020D-EH, SIGER2525D-EH |
| GER400-D | D | 5.0 | 5.5 | 20 | SIGER2020D-EH, SIGER2525D-EH |
Key Features and Benefits
- Precision machining for internal and face grooving applications
- Available in four slot types (A, B, C, D) for diverse needs
- Compatible with a wide range of tool holders
- Ideal for processing materials such as steel, stainless steel, and aluminum
- Enhanced tool life and high cutting performance
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.