Never again struggle to cut a nice round clean hole through a panel.Our range of hole cutters will cut a neat,distortion free hole in mild or stainless steel up to 16 swg(1.6mm)or up to 2mm in aluminium,copper and brass.Simply drill a pilot hole,assemble the punch and wind it through with a regular hex key,it couldn't be simpler.Bolt and thread in punch - M1025.4mm(1)SQUARE SHEET METAL HOLE PUNCH #HP234SQ
Q-Max QMA25M Sheet Metal Hole Punch 25mm
Klein Tools 4BPSET5 Brass Punches 5 Piece Set Klein Tools' Brass Punches are designed for applications requiring a softer punch. Or more specifically, any situation where using a hardened punch may cause damage. The brass composition is specially selected for punch use. Used where a softer punch is needed, e.g. where damage may occur from using a hardened punch. Selected brass, correct composition for punch use. Knurled handle for gripping easily.
Klein Tools 4BPSET5 5-Piece Brass Punch Set
Sheet metal fabrication: the manufacturing & design guide (2021 update)
Greenlee 50356178SET ISO 16 - 40 Slug Buster® Punch Set - Five Pieces
Greenlee Knockout Punch, 1 In - Hand Tool Knockout Punches
The Beadsmith Steel Square Disc Cutter Set With 7 Punches, Die, Lever and Box. Tool for Cutting Accurate Squares From: 3/16 to 5/8 Inch
physical design - How do I open a rectangular hole on a metal case? - Electrical Engineering Stack Exchange
Alfra FormCut™ and FormCut+™ Square hole Punch & Die Kit, The FormCut™ and FormCut+™ square hole punching sets are high quality tools made in Germany
Alfra Square Punch and Die Set
TLA Distribution Ltd - Battery / Hydraulic Hole Punching / Tools
25.4mm (1) Square Sheet Metal Hole Punch