| Tool | Round bar grindstone | 
|---|---|
| Problem | Manual use of rod grindstone. It was necessary to form the tip of the grindstone to polish the tapered portion. Manual processing resulted in unstable polishing quality. | 
| Tool | XEBEC Brush Crosshole (CH-A12-3M) | 
|---|---|
| Results | Work efficiency improved because the shape of a brush fits to the tapered portion of a workpiece. Enables to remove cutter marks in a shorter time. | 

| Industry | Mold | 
|---|---|
| Part name | Mold (Sprue hole) | 
| Material type | SKD2 | 
| Machining process | Others | 
| Tool | XEBEC Brush Crosshole (CH-A12-3M) | 
|---|---|
| Details of processing | Removal of cutter marks and polishing after electrical discharge machining | 
| Spindle speed (min⁻¹) | 10,000 | 
| Table feed (mm/min) | – | 
| Depth of cut (mm) | – | 
| Machining time (sec) | – | 
Ideal for deburring, polishing and cutter mark removal on inner diameter and counterbored part