Once I found the right arbor in my toolbox, This hole saw quickly made it through the barn wall to install some round air vents. A jigsaw could have been used but I like cleaner holes in the work I do. edg-us-20&ascsubtag=1ba00-01000-org00-win10-other-smile-us000-pcomp-feature-scomp-wm-5&ref=aa_scomp_sosp1