Description
Greenlee K3BB-3 – Standard Round Manual Knockout Set (3″ Conduit)

- Standard Round manual knockout set
- Knockout set only – does not include ratchet
- Size = 3″ Conduit
- For use in mild steel, brass, copper, aluminum, fiberglass and plastics
- Punch with knurled edge for better grip
Greenlee offers a variety of Slug Buster and Standard Round knockout sets for manual usage. The chart below provides an overview of part numbers and sizes for both series.
Please note, the K2BB Slug Buster and K3BB Standard Round sets are for manual usage only. They do not have the draw stud for hydraulic tools.
| Hole Size | Slug-Buster | Standard Round | ||
| Conduit Size | Actual Size | Set | Set | |
| 1/2″ | 0.89″ | 22.5 mm | K2BB-1/2 | K3BB-1/2 |
| 3/4″ | 1.12″ | 28.3 mm | K2BB-3/4 | K3BB-3/4 |
| – | – | 30.5 mm | K2BBM-0305 | – |
| 1″ | 1.36″ | 34.6 mm | K2BB-1 | K3BB-1 |
| 1-1/4″ | 1.70″ | 43.2 mm | K2BB-1-1/4 | K3BB-1-1/4 |
| 1-1/2″ | 1.95″ | 49.6 mm | K2BB-1-1/2 | K3BB-1-1/2 |
| 2″ | 2.42″ | 61.5 mm | K2BB-2 | K3BB-2 |
| 2-1/2″ | 2.91″ | 74.0 mm | – | K3BB-2-1/2 |
| 3″ | 3.54″ | 89.9 mm | – | K3BB-3 |
| 3-1/2″ | 4.04″ | 102.7 mm | – | K3BB-3-1/2 |
| 4″ | 4.54″ | 115.4 mm | – | K3BB-4 |
General Attributes | |
|---|---|
| Product Height | 5.00 IN |
| Product Length | 9.00 IN |
| Product Width | 7.00 IN |
| Country of Origin | United States |




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