Double-sided Octagonal Milling Inserts
Adapt to Iscar Inserts
Octagonal milling inserts are usually used for surface milling and a small number of them use customized toolholders for slot milling. They are made from carbide material, have high hardness and wear resistance and can withstand deeper cutting depths. Octagonal milling inserts have a slower cutting speed and greater feed rate and are suitable for most workpieces that require material removal and are more commonly used in the aerospace and automotive industries.
Octagonal milling inserts are cutting tools used for milling. The cutting edge shape is octagonal. Generally, ISO codes begin with "O". There are two types of blades, single-sided and double-sided. They can be used on both sides. There are 16 cutting edges on the front and back of the blade.
Guass has been in this industry for 30 years and has always been at the forefront of technology. We have always maintained excellent standards in equipment introduction and foreign technical cooperation. In the early days, we passed the quality certification of French Bell and still maintain excellent quality standards today. In addition, we also provide OEM (Original Equipment Manufacturer) and ODM (Original Design Manufacturer) services to many major foreign manufacturers and continue to accept OEM requirements.
At Guass, we are committed to providing exceptional quality and service and building long-term relationships with our customers. We look forward to providing you with quality products and services.
ON Type
- GW1549N, ONMU1305-SW
- GW1644, ONGU1305-SWT
Specification

Ordering Code | Insert ISO Code | Dimension | ||||
---|---|---|---|---|---|---|
D | S | F | r | θ | ||
GW1549N | ONMU1305-SW | 13.00 | 5.50 | 5.00 | 0.4 | 0° |
GW1644 | ONGU1305-SWT | 13.00 | 5.50 | 5.00 | 0.8 | 0° |
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Double-sided Octagonal Milling Inserts | Guass Carbide Inserts – Engineered in Taiwan for Precision, Strength & Value
Enhance your machining accuracy and efficiency with high-performance Double-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.