GST series threading tools
GSTT series threaded inserts are made by precision grinding, with high dimensional accuracy and surface quality, and equipped with a variety of tool holders, which are especially suitable for threading of small parts.
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- Feature
- Application
- Application case
Insert characteristics
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GSTT-for thread turning of small parts;
♦ Sharp edge, large rake angle design, light and fast cutting, ensuresthe surface finishof the machined parts; ♦ Without edge width,small radiusdesign for better surface finish. ♦ Available55°and 60° general-purpose threading inserts, for thread turning of small parts |
Coating grade
Provide special PVD grade for small part machining，Suitable for turning in steel, stainless steel, and other material.
PVD：GAT7115 GAT7125
Tool holder characteristics
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GST-Tool holders for small part threading.
♦ Including GST and GST-RS series ♦ Height and width of Holder:10-10、12-12、16-16 |
Inserts：
Cutting Passes and Radial Infeed Recommendation Table
| Thread type | spiral pitch | Ordering Code | Nose
radius （RE） |
Cutting
depth |
Total
passes |
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
| mm | ||||||||||||||||
| ISO
Metric |
External | 0.20mm | GSTT 3R/L A/B6000 | Max
0.05 Flat |
0.15 | 4 | 0.06 | 0.04 | 0.03 | 0.02 | ||||||
| 0.25mm | 0.19 | 4 | 0.07 | 0.06 | 0.04 | 0.02 | ||||||||||
| 0.30mm | 0.23 | 4 | 0.08 | 0.07 | 0.06 | 0.02 | ||||||||||
| 0.35mm | 0.27 | 5 | 0.08 | 0.07 | 0.06 | 0.04 | 0.02 | |||||||||
| 0.40mm | 0.30 | 5 | 0.10 | 0.08 | 0.06 | 0.04 | 0.02 | |||||||||
| 0.45mm | 0.34 | 6 | 0.10 | 0.08 | 0.06 | 0.04 | 0.04 | 0.02 | ||||||||
| 0.50mm | GSTT 3R/L A/B6000 | 0.38 | 6 | 0.10 | 0.10 | 0.07 | 0.05 | 0.04 | 0.02 | |||||||
| GSTT 3R/L A/B60005 | 0.05 | 0.33 | 5 | 0.10 | 0.10 | 0.07 | 0.04 | 0.02 | ||||||||
| 0.60mm | GSTT 3R/L A/B6000 | Max
0.05 Flat |
0.45 | 7 | 0.10 | 0.10 | 0.08 | 0.06 | 0.05 | 0.04 | 0.02 | |||||
| GSTT 3R/L A/B60005 | 0.05 | 0.40 | 6 | 0.10 | 0.10 | 0.08 | 0.06 | 0.04 | 0.02 | |||||||
| 0.70mm | GSTT 3R/L A/B60005 | 0.05 | 0.48 | 6 | 0.10 | 0.10 | 0.10 | 0.10 | 0.06 | 0.02 | ||||||
| 0.75mm | 0.05 | 0.52 | 7 | 0.10 | 0.10 | 0.10 | 0.08 | 0.07 | 0.05 | 0.02 | ||||||
| 0.80mm | 0.05 | 0.56 | 7 | 0.10 | 0.10 | 0.10 | 0.10 | 0.08 | 0.06 | 0.02 | ||||||
| 1.00mm | GSTT 3R/L A/B60005 GSTT 3R/L N6001 |
0.05 | 0.71 | 8 | 0.15 | 0.15 | 0.12 | 0.10 | 0.08 | 0.06 | 0.03 | 0.02 | ||||
| 0.10 | 0.66 | 7 | 0.18 | 0.15 | 0.12 | 0.10 | 0.06 | 0.03 | 0.02 | |||||||
| 1.25mm | 0.05 | 0.90 | 9 | 0.20 | 0.18 | 0.13 | 0.10 | 0.10 | 0.07 | 0.05 | 0.05 | 0.02 | ||||
| 0.10 | 0.85 | 8 | 0.20 | 0.18 | 0.13 | 0.10 | 0.10 | 0.07 | 0.05 | 0.02 | ||||||
| 1.50mm | GSTT 3R/L N6001 | 0.10 | 1.04 | 10 | 0.20 | 0.18 | 0.14 | 0.12 | 0.10 | 0.10 | 0.08 | 0.05 | 0.05 | 0.02 | ||
Recommended Cutting Speed
| ISO | Workpiece Material | Hardness (HB) | series | Grade | Cutting Speed Vc(m/min) |
| P | Steel | ≤300 | GSTT | GAT7115 | 120(60-180) |
| GAT7125 | 90(40-150) | ||||
| M | Stainless steel | ≤300 | GSTT | GAT7115 | 100(60-150) |
| GAT7125 | 80(40-130) |
Tool holders：
Provide various Tool holders，Including GST series and GST-RS back turning series。
| No. | Holder series | Machining type | Fig | Remark |
| 1 | GST | Excircle machining |  |
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| 2 | GST-RS | Excircle machining |  |
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GSTT cutting processing case(Pipe Joint)
| Insert | GSTT3RN6001 |  |
| Grade | GAT7115 | |
| Material | 20# | |
| Speed | 48m/min | |
| Feed | 1.5mm/r |  |
| Depth | 1.04mm | |
| Cooling | Water-based emulsion/external cooling | |
| Machining type | External thread turning |
