Greenlee 7304 Standard Round Knockout Set for Hydraulic Drivers, 2-1/2" to 4"
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- For use with all Greenlee hydraulic (manual or battery) drivers
- Knurled edge on punches for better grip
- New die design optimized for widest range of materials and drivers
- Laser markings for quick part identification. Alignment markings for improved accuracy
- Easy threading - draw studs with "dog point" tip helps eliminate cross-threading. Hex key access for easy removal from tool.