24" Aluminum Extra Long Flat Knife. This is the longest flat knife available. This extra long flat cut-out knife gives you extra reach and leverage. Constructed from 1/4" thick high-strength anodized aluminum. Molded high density handle ensures stable, tight grip. These flat long knives incorporate a stainless steel nut and screw to reduce stripped threads and improve the life of the long knives. Uses standard notched razor blades.