Hand Tools
Adjustable Sheet Metal Hole Cutter w/ 2 Drill Bits, 2 to 12" Sheet Metal Hole Saw Circle Cutter for Duct/HVAC/Ductwork/Roofing/24ga Steel and 26ga Stainless
Adjustable Sheet Metal Hole Cutter: Install directly on 1/4" standard drill chuck to cut circle hole from 2" to 12" on the sheet metal. Cutting capacity up to 24 gauge steel plate and 26 gauge stainless steel plate. move the center nut on the...
https://www.bizrate.co.uk/handtools/adjustable-sheet-metal-hole-cutter-oid28814903140.html