Over Time, the blade will become less sharp and will no longer be able to cut through the tape. If this is the case, you’ll need to replace the blade on your gun. Another possibility is that there is something blocking the path ofwel the blade. Peels Haarmode is ons https://blogs.cornell.edu/advancedrevenuemanagement12/2012/03/28/department-store-industry/comment-page-4856/