IBOSAD Manual Lever Sheet Metal Stud Punch 20GA with (7\/8", 1-1\/8", and 1-11\/32") Manual Knockout Hole Punch Driver Kits Conduit Hole Cutter Set KO Tool

20 ga (1 mm) Steel Punching Capacity. 3 Die Sets for pipe sizes: 7/8", 1-1/8", and 1-11/32" measured hole sizes. Hardened Tool Steel Punch Dies are guaranteed to outlast generic models. | Aluminum head provides strength with minimum weight, reducing operator fatigue. | Hardened Tool Steel Punch Dies are designed to outlast generic models. Compact for field use on construction sites and maintenance jobs. | Contoured handle design gives better operator leverage. | Smooth operation, clean hole edges, round and lovely holes, uniform hole size, easy to use, light and effortless.