| OLFA SK10 1096854 SK-10 Concealed Blade Safety Knife (Pack of 6) The OLFA concealed blade safety knife features an adjustable blade positioning design which allows for 4 cutting points on a single-edge utility blade. Highly productive it delivers 4x s more cuts than a single-edge fixed blade gooseneck safety knife.... more | | $57.29 FREE shipping go to store |