The M1 Caliber can measure any flat material, including seamless gutters! Featured above is a customer who mounted their M1 Caliber to their seamless gutter machine to easily measure gutter runs and not have to hook on the fabric measuring tape each time! . We always appreciate seeing customer use cases; if you have a cool setup with your M1 Caliber, send it to us/tag us in a video and we may feature it (along with send you a free T1 Digital Tape Measure)! | Reekon Tools