DrillMeister -Wheel hub bearing- DMH head
IMPROVED TOOL LIFE AND PRODUCTIVITY
In this drilling test, the DrilMeister achieved both extended tool life and improved productivity.
The DMH head, featuring superior chipping resistance, demonstrated excellent performance under high-feed conditions.
Higher cutting speed and feed rate were applied while maintaining stable surface quality.
As a result, the number of holes per new cutting edge increased by approximately 1.8 times, leading to fewer tool changes and a significant reduction in total machining cost.
The DMH head solution is highly effective for mass production applications.
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| Industry | Automotive |
|---|---|
| Component | Wheel bearing Hub part |
| Material ISO code |
 P - Steel |
| Work material | C45 |
| Material hardness | 25HRC |
| Machine(spindle type) | Vertical Machining Center Small(#30,HSK40) |
| Tool family | Holemaking |
| Tool category | Drilling |
| Product name | DrillMeister |
| TSR No. | 127181H |
Tool
| Tungaloy | Competitor | |
|---|---|---|
| Body | TID100R12-2E | Solid carbide drill 3xD |
| Head | DMH105 AH9130 | Drill head 140deg |
| Grade | AH9130 | PVD |
Tool life
| Tungaloy | Competitor | |
|---|---|---|
| Tool life (m/insert) | 155.25 | 87.75 |
| Number of workpieces (pcs/insert) | 330 | 265 |
Cutting conditions
| Tungaloy | Competitor | |
|---|---|---|
| Tool diameter DC (mm) | 10.5 | 10.5 |
| Hole tolerance grade | IT10 | IT10 |
| Surface quality required Ra (μm) | Ra 12μm | Ra 12μm |
| Hole depth H (mm) | 13.5 | 13.5 |
| Cutting speed V/c (m/min) | 85 | 70 |
| Feed f (mm/rev) | 0.3 | 0.3 |
| Feed speed Vf (mm/min) | 773 | 637 |
| Coolant | Extenal coolant | Extenal coolant |