Bosch
Bosch HSS-G 32 → 74mm Arbor
Part No.
2609390587
Procurement Intelligence
This is a Bosch HSS-G step drill arbor assembly (32-74mm range) designed for progressive hole enlargement in sheet metal and thin materials. The arbor mounts directly into drill chucks and requires verification that your machine's spindle speed capability supports HSS-G performance across the full diameter range without excessive heat generation.
Progressive hole drilling thin metals
Before ordering — verify:
| ☐ | Spindle speed compatibility |
| ☐ | Chuck jaw grip capacity |
| ☐ | Coolant application method |