Single-sided Octagonal Milling Inserts
Adapt to Iscar Inserts
Single-sided octagonal milling inserts are usually used for plane milling. A small number of them are used for milling grooves with customized tool bars. They are made of carbide insert materials with high hardness and wear resistance. They can withstand deeper cutting depths, slower cutting rates and more cutting feeds. They are suitable for most workpieces that remove materials. They are more common in the fields of aerospace and automobiles, and other processing is also quite common.
Octagonal milling inserts are cutting tools used for milling. The blade shape is octagonal. Generally, the ISO code starts with the English letter "O". They are single-sided cutting and are mostly used for processing planes. These are earlier products that require a deeper cutting depth.
OD Type
- GW784, OEMX12T3-PAT
- GW784A, OEHW12T3-MO
- GW1188, ODMX1204-PAT
- GW1188-1, ODMW1204-MO
Specification

Ordering Code | Insert ISO Code | Dimension | ||||
---|---|---|---|---|---|---|
D | S | F | r | θ | ||
GW784 | OEMX12T3-PAT | 12.70 | 4.00 | 6.00 | 0.8 | 20° |
GW784A | OEHW12T3-MO | 12.70 | 4.00 | 6.00 | 0.8 | 20° |
GW1188 | ODMX1204-PAT | 12.70 | 4.76 | 6.00 | 0.8 | 15° |
GW1188-1 | ODMW1204-MO | 12.70 | 4.76 | 6.00 | 0.8 | 15° |
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Single-sided Octagonal Milling Inserts | Guass Carbide Inserts – Engineered in Taiwan for Precision, Strength & Value
Enhance your machining accuracy and efficiency with high-performance Single-sided Octagonal Milling Inserts engineered by Guass. Designed to handle challenging materials and high-speed operations, our inserts deliver consistent results across turning, milling, and drilling applications.
Whether you're working with hardened steel, stainless alloys, or composites, our ISO-certified solutions are trusted by manufacturers in aerospace, automotive, electronics, and plastic injection molding industries. Each insert is crafted for longevity, excellent chip control, and minimal downtime—making your CNC process faster and more cost-effective.
With over 15 years of expertise in tungsten carbide sintering and tool innovation, Guass continues to set the standard for precision tooling. Explore our full selection of carbide inserts built for maximum durability and performance.