Product Information
SPMT is one kind of Carbide drill insert for shallow hole drilling. It is power-efficient, productive and reduces demands on the machine tool spindle as the main cutting forces are directed axially along the spindle. Internal plunge milling is started by drilling a hole for the plunging tool. SP type with PVD coating performs good wear resistance, collapse resistance and oxidation resistance.

| Type | r | L | I.C | S |
| SPMT050204-HN | 0.4 | 5 | 5 | 2.38 |
| SPMT060204-HN | 0.4 | 6 | 6 | 2.38 |
| SPMT07T308-HN | 0.8 | 7.94 | 7.94 | 3.97 |
| SPMT090408-HN | 0.8 | 9.8 | 9.8 | 4.3 |
| SPMT110408-HN | 0.8 | 11.5 | 11.5 | 4.8 |
| SPMT140512-HN | 1.2 | 14.3 | 14.3 | 5.2 |
Application
Application as hole machining for various materials: steel, stainless steel and cast iron with desired hole diameter.
Chip-breaker & Grade
◆ HN Chip-breaker Characteristics:
- On the basis of ensuring the sharpness of the edge, the strength of the edge is enhanced, which is suitable for steel, stainless steel and.Semi-finishing of cast Iron.
◆ Recommend Grade for SPMT-HN / SPMG-HN Carbide insert:
We produce SPMT-HN / SPMG-HN turning carbide insert with PVD coating for steel cutting.
- JA2825: The consumption of this grade is the largest in stainless steel processing, and it has excellent performance in strength and wear resistance. 60% of stainless steel customers will choose this grade.
- JA2828: Also with a common grade, compare with JA2825 carbide insert, the strength would be more better, but wear resistance worse a little. Suitable for stainless steel rough and Intermittent machine.
- JA2824: Some precious metals were added, performance super excellent. The only disadvantage is that the price will be higher, if you want to replace high level carbide insert that is good grade.
- JA2425: Suitalbe for cutting Titanium alloy, Duplex stainless steel and some hard machine stainless steel. Useful M, S, N kind of marterial.
- JA2025: Suitable for cutting steel, stainless steel and cast iron, that is very normal grade, suitable for many material. But if you only want to cutting steel, or only want to cutting stainless steel, choose others grade is best.
- JA2525: The materials suitable for processing are the same with JA2025, just little harder than JA2025.
Warm Tip
If you have any other questions, or our detailed description is not very clear? It doesn’t matter, please don’t hesitate to contact us, we will give you a perfect answer in a short time.





















