(Hole Size,63mm) 1 Piece Hydraulic Knockout Punch Driver Kit Hole Dies -63mm If you need other sizes you need, please contact us. We also offer customized services, just give us the size you want. Our dies are of fair price and good quality. Our company specializes in producing hydraulic tools for more than 15 years. (Hole Size,63mm) 1 Piece Hydraulic Knockout Punch Driver Kit Hole Dies -63mm