Ruko 109 015 5 piece hole punch set ruko 109015 p a 5 piece set of sheet metal punches from ruko the punches cut large circular holes in thin materials quickly easily cleanly and without burrs p p simply drill a suitable pilot hole and assemble the punch with one part of the punch either side of the sheet tightening the central draw in bolt pulls the punch through the sheet to produce the hole p ruko 109015 hole punch set