Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Verge Gauge by PERRIN Sale $20.48 | / SKU 79-0504 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available Verge Gauge Hulsey's is used to check for the proper angle of a verge. Verge Gauge comes with instructions.