60 Degree Internal Diameter Turning Inserts
Adaptable NTK Type
The 60 degree internal diameter turning inserts are efficient cutting tools for rough turning, fine turning and semi-finishing, and are also the first choice for internal machining. The insert is triangular in shape, the ISO code starts with "T" and has a single-sided 3-edge design. Similar to the Japanese B and N brands, the shape of our chip flutes is divided into R and L sides, which can effectively protect the inner diameter surface during the chip removal process, showing the lifetime advantage of the same type of tungsten steel inserts.
When using this blade for machining, the surface roughness of the inner hole is better than that of negative angle turning insert. Choosing the appropriate material for machining, such as semi-ceramic, full ceramic or tungsten carbide insert, has a significant impact on accuracy and brightness. As a global expert in the manufacture of tungsten steel inserts, we offer high quality 60-degree internal diameter turning inserts to meet various precision machining needs and ensure the best machining quality.
T Type
- GW1320-1, TCGT110204-FY
- GW1368-1-2, TPGT080202-FY
- GW1368-1-4, TPGT080204-FY
- GW1368-1-8, TPGT080208-FY
- GW1649-1-2, TPGT090204-FY
- GW1649-1-8, TPGT090208-FY
- GW1028, TPGT09T204-FY
- GW1608, TPMW110302-FY
- GW1608, TPMW110302-FY
- GW1612-1-2, TPGT110302-FY
- GW1612-1-4, TPGT110304-FY
- GW1612-1-8, TPGT110308-FY
Specification


Ordering Code | Insert ISO Code | Dimension | ||||
---|---|---|---|---|---|---|
D | S | r | d | θ | ||
GW1320-1 | TCGT110204-FY | 6.35 | 2.38 | 0.4 | 2.80 | 7° |
GW1368-1-2 | TPGT080202-FY | 4.76 | 2.38 | 0.2 | 2.34 | 11° |
GW1368-1-4 | TPGT080204-FY | 4.76 | 2.38 | 0.4 | 2.34 | 11° |
GW1368-1-8 | TPGT080208-FY | 4.76 | 2.38 | 0.8 | 2.34 | 11° |
GW1649-1-2 | TPGT090202-FY | 5.56 | 2.38 | 0.2 | 2.65 | 11° |
GW1649-1-4 | TPGT090204-FY | 5.56 | 2.38 | 0.4 | 2.65 | 11° |
GW1649-1-8 | TPGT090208-FY | 5.56 | 2.38 | 0.8 | 2.65 | 11° |
GW1028 | TPGT09T204-FY | 5.56 | 2.78 | 0.4 | 2.80 | 11° |
GW1608 | TPMW110302-FY | 6.35 | 3.18 | 0.2 | 3.40 | 11° |
GW1612-1-2 | TPGT110302-FY | 6.35 | 3.18 | 0.2 | 3.40 | 11° |
GW1612-1-4 | TPGT110304-FY | 6.35 | 3.18 | 0.4 | 3.40 | 11° |
GW1612-1-8 | TPGT110308-FY | 6.35 | 3.18 | 0.8 | 3.40 | 11° |
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60 Degree Internal Diameter Turning Inserts | Guass Carbide Inserts – Engineered in Taiwan for Precision, Strength & Value
Enhance your machining accuracy and efficiency with high-performance 60 Degree Internal Diameter Turning 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.