Producing a neat and accurate hole in sheet metal is virtually impossible without a hole or chassis punch. Punch holes in steel up to 1.2mm (18g) thick. There is a range of 75 different sizes available (imperial & metric, round, square & rectangular). So, if you have a special requirement, please call us at 01706-658-619 for detail. Single Round Hole Punch available : 52mm dia (clocks), 65mm dia., 75mm dia. We also have put together the common sizes in the following kits: - G130 Set of 4 Hole Punch: 1/2\", 5/8\", 3/4\" and 1\" . - G131 Set of 6 Hole Punch: 1/2\", 5/8\", 3/4\", 1\", 1-1/4\", 1-1/2\" . Read \" 10 MUST-HAVE Restoration Tools \" from Technical Article .