Insert characteristics
 |
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
 |
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
（mm） |
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 |
 |
 |
| 2 |
GST-RS |
Excircle machining |
 |
 |
