Midwest Tool and Cutlery MW-ECC Gutter End Cap Crimper Securely fastens end-cap to gutter with a double-cut on the inside and louver-cut on the outside. Adjustable throat depth from 1/8"(3.2mm) to 3/8"(9.5mm). Crimper blade forged for strength and precision CNC milled for accuracy. Heavy-duty handles. Made in the USA