Lewis Safety Knife Co. div. of Seal-O-Matic Corporation presents the Lewis K710 Locking Safety Knife. This American-made fixed blade safety utility knife features a patented locking safety hood that covers the blade instantly and automatically when contact is lost with the cutting surface. Other features include easy blade changing with no tools required, definitive depth settings of ¼-in. and ¾-in. blade exposure and an ergonomically designed handle that is comfortable for use with either the left or right hand. Lewis Safety Knife,www.sealomatic.com, (800) 631-2072. Circle 235lewis safety knife