The Greenlee 7310SB 11-ton hydraulic knockout kit includes Slug-Buster® punches and dies for 1/2"–2" and standard round punches for 2-1/2"–4" conduit sizes. It handles up to 10 ga mild steel and 12 ga stainless steel. The kit features knurled edges on punches for better grip, laser markings for quick part identification, and alignment markings for improved accuracy. Draw studs with dog point tips help eliminate cross-threading.