VOLTZ tools Features: > USE: This is a manual hydraulic metalworking hole punch used to open holes on steel plate > LONG SERVICE LIFE: Dies are made from high quality 40 chromium steel for high hardness and long service life >DIES: Comes with 12 dies of 22mm,27.5mm,34mm,43mm,49mm,60mm,63mm, 76mm,80mm, 89mm, 101mm, 114mm that can open different size of holes > WELL PACKED: Well packed and assorted in a metal box for well protection, convenient storage and carry > NOTICE: Drill a 20.5mm hole on steel plate first, make sure the screw rod can pass the hole then you can use this hole punch tool, Specifications: Die Materiel: 40 chromium steel Dies:22mm,27.5mm,34mm,43mm49mm,60mm,63mm, 76mm,80mm, 89mm, 101mm, 114mm Stroke: 22mm Suitable Steel Plate Thickness: ≤4mm Suitable Stainless Steel Thickness: ≤2mm Item Weight: 26kg Package Includes: 1 x Hole Punch Tool 10 x Dies 2 x Screw Rods * NOTICE: Do Not Operate The Pump After Ram Motion Stops. Continuing to Operate The Pump Lever After The Ram Stops Will Damage The Ram