For use with all Greenlee hydraulic (manual or battery) drivers. Knurled edge on punches for better grip. Slug-Buster punch profile splits slugs for easy slug removal. 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. Made in the USA. Replaces 7216