Take on a wide range of cutting applications with the DEWALT® TOUGHSERIES Retractable Utility Knife. Designed with a new slider mechanism, this knife delivers 2X longer life and debris resistance*. Engineered to provide durability in harsh conditions, this TOUGHSERIES knife helps limit blade tearout with a secure blade lock that helps retain the blade while cutting. Featuring a slide-and-click blade changing system and onboard storage for up to 10 blades, the DEWALT® TOUGHSERIES Retractable Utility Knife is cut out for tough jobs.